Ford Explorer: Information and Entertainment System - General Information - Vehicles With: SYNC 3 / Diagnosis and Testing - Information and Entertainment System - Vehicles With: SYNC 3

Ford Explorer 2020-2021 Service Manual / Electrical / Information and Entertainment Systems / Information and Entertainment System - General Information - Vehicles With: SYNC 3 / Diagnosis and Testing - Information and Entertainment System - Vehicles With: SYNC 3

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


  Diagnostic Trouble Code Chart


Module   DTC Description Action
  ACM B116A:01 Handset Microphone:General Electrical Failure   GO to Pinpoint Test AB
  ACM B116A:12 Handset Microphone:Circuit Short To Battery   GO to Pinpoint Test AB
  ACM B116A:14 Handset Microphone:Circuit Short To Ground or Open   GO to Pinpoint Test AB
  ACM B117A:01 Backup Microphone:General Electrical Failure   GO to Pinpoint Test AB
  ACM B117A:12 Backup Microphone:Circuit Short To Battery   GO to Pinpoint Test AB
  ACM B117A:14 Backup Microphone:Circuit Short To Ground or Open   GO to Pinpoint Test AB
  ACM B13F5:01 Microphone 3:General Electrical Failure   GO to Pinpoint Test AB
  ACM B13F5:12 Microphone 3:Circuit Short To Battery   GO to Pinpoint Test AB
  ACM B13F5:14 Microphone 3:Circuit Short To Ground or Open   GO to Pinpoint Test AB
  ACM B150C:01 Automobile Audio Bus (A2B) Node 1:General Electrical Failure   GO to Pinpoint Test D
  ACM B150C:11 Automobile Audio Bus (A2B) Node 1:Circuit Short To Ground   GO to Pinpoint Test D
  ACM B150C:12 Automobile Audio Bus (A2B) Node 1:Circuit Short To Battery   GO to Pinpoint Test D
  ACM B150C:13 Automobile Audio Bus (A2B) Node 1:Circuit Open   GO to Pinpoint Test D
  ACM B150C:55 Automobile Audio Bus (A2B) Node 1:Not Configured   GO to Pinpoint Test D
  ACM B150C:87 Automobile Audio Bus (A2B) Node 1:Missing Message   GO to Pinpoint Test D
  ACM B150C:8F Automobile Audio Bus (A2B) Node 1:Erratic   GO to Pinpoint Test D
  ACM B150C:95 Automobile Audio Bus (A2B) Node 1:Incorrect Assembly   GO to Pinpoint Test D
  ACM B1511:01 Automobile Audio Bus (A2B) Master Node:General Electrical Failure   GO to Pinpoint Test D
  ACM B1511:11 Automobile Audio Bus (A2B) Master Node:Circuit Short To Ground   GO to Pinpoint Test D
  ACM B1511:12 Automobile Audio Bus (A2B) Master Node:Circuit Short To Battery   GO to Pinpoint Test D
  ACM B1511:13 Automobile Audio Bus (A2B) Master Node:Circuit Open   GO to Pinpoint Test D
  ACM B1511:95 Automobile Audio Bus (A2B) Master Node:Incorrect Assembly   GO to Pinpoint Test D
  ACM B1A01:01 Speaker #1:General Electrical Failure   GO to Pinpoint Test G
  ACM B1A01:01 Speaker #1:General Electrical Failure   GO to Pinpoint Test H
  ACM B1A01:11 Speaker #1:Circuit Short To Ground   GO to Pinpoint Test G
  ACM B1A01:11 Speaker #1:Circuit Short To Ground   GO to Pinpoint Test H
  ACM B1A01:12 Speaker #1:Circuit Short To Battery   GO to Pinpoint Test G
  ACM B1A01:12 Speaker #1:Circuit Short To Battery   GO to Pinpoint Test H
  ACM B1A01:13 Speaker #1:Circuit Open   GO to Pinpoint Test G
  ACM B1A01:13 Speaker #1:Circuit Open   GO to Pinpoint Test H
  ACM B1A02:01 Speaker #2:General Electrical Failure   GO to Pinpoint Test G
  ACM B1A02:01 Speaker #2:General Electrical Failure   GO to Pinpoint Test H
  ACM B1A02:11 Speaker #2:Circuit Short To Ground   GO to Pinpoint Test G
  ACM B1A02:11 Speaker #2:Circuit Short To Ground   GO to Pinpoint Test H
  ACM B1A02:12 Speaker #2:Circuit Short To Battery   GO to Pinpoint Test G
  ACM B1A02:12 Speaker #2:Circuit Short To Battery   GO to Pinpoint Test H
  ACM B1A02:13 Speaker #2:Circuit Open   GO to Pinpoint Test G
  ACM B1A02:13 Speaker #2:Circuit Open   GO to Pinpoint Test H
  ACM B1A03:01 Speaker #3:General Electrical Failure   GO to Pinpoint Test G
  ACM B1A03:01 Speaker #3:General Electrical Failure   GO to Pinpoint Test H
  ACM B1A03:11 Speaker #3:Circuit Short To Ground   GO to Pinpoint Test G
  ACM B1A03:11 Speaker #3:Circuit Short To Ground   GO to Pinpoint Test H
  ACM B1A03:12 Speaker #3:Circuit Short To Battery   GO to Pinpoint Test G
  ACM B1A03:12 Speaker #3:Circuit Short To Battery   GO to Pinpoint Test H
  ACM B1A03:13 Speaker #3:Circuit Open   GO to Pinpoint Test G
  ACM B1A03:13 Speaker #3:Circuit Open   GO to Pinpoint Test H
  ACM B1A04:01 Speaker #4:General Electrical Failure   GO to Pinpoint Test G
  ACM B1A04:01 Speaker #4:General Electrical Failure   GO to Pinpoint Test H
  ACM B1A04:11 Speaker #4:Circuit Short To Ground   GO to Pinpoint Test G
  ACM B1A04:11 Speaker #4:Circuit Short To Ground   GO to Pinpoint Test H
  ACM B1A04:12 Speaker #4:Circuit Short To Battery   GO to Pinpoint Test G
  ACM B1A04:12 Speaker #4:Circuit Short To Battery   GO to Pinpoint Test H
  ACM B1A04:13 Speaker #4:Circuit Open   GO to Pinpoint Test G
  ACM B1A04:13 Speaker #4:Circuit Open   GO to Pinpoint Test H
  ACM B1A07:13 Speaker #7:Circuit Open   GO to Pinpoint Test G
  ACM B1A07:13 Speaker #7:Circuit Open   GO to Pinpoint Test H
  ACM B1A08:13 Speaker #8:Circuit Open   GO to Pinpoint Test G
  ACM B1A08:13 Speaker #8:Circuit Open   GO to Pinpoint Test H
  ACM B1A09:13 Speaker #9:Circuit Open   GO to Pinpoint Test G
  ACM B1A09:13 Speaker #9:Circuit Open   GO to Pinpoint Test H
  ACM B1A10:13 Speaker #10:Circuit Open   GO to Pinpoint Test G
  ACM B1A10:13 Speaker #10:Circuit Open   GO to Pinpoint Test H
  ACM B1A89:11 Satellite Antenna:Circuit Short To Ground   GO to Pinpoint Test B
  ACM B1A89:13 Satellite Antenna:Circuit Open   GO to Pinpoint Test B
  ACM B1D55:11 Antenna #2:Circuit Short To Ground   GO to Pinpoint Test A
  ACM B1D55:15 Antenna #2:Circuit Short To Battery or Open   GO to Pinpoint Test A
  ACM U0100:00 Lost Communication with ECM/PCM "A":No Sub Type Information   GO to Pinpoint Test AC
  ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module:No Sub Type Information   GO to Pinpoint Test AD
  ACM U0140:00 Lost Communication With Body Control Module:No Sub Type Information   GO to Pinpoint Test AE
  ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module:No Sub Type Information   GO to Pinpoint Test AG
  ACM U0238:00 Lost Communication With Digital Audio Control Module "D":No Sub Type Information   GO to Pinpoint Test AO
  ACM U0253:00 Lost Communication With Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AS
  ACM U201A:51 Control Module Main Calibration Data:Not Programmed   GO to Pinpoint Test AY
  ACM U201B:04 Control Module Calibration Data #2:System Internal Failure   GO to Pinpoint Test AY
  ACM U201B:51 Control Module Calibration Data #2:Not Programmed   GO to Pinpoint Test AY
  ACM U201B:55 Control Module Calibration Data #2:Not Configured   GO to Pinpoint Test AY
  ACM U2024:00 Control Module Cal-Config Data:No Sub Type Information   GO to Pinpoint Test AY
  ACM U2024:57 Control Module Cal-Config Data:Invalid / Incompatible Software Component   GO to Pinpoint Test AY
  ACM U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AY
  ACM U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AY
  ACM U3000:41 Control Module:General Checksum Failure   GO to Pinpoint Test AZ
  ACM U3000:42 Control Module:General Memory Failure   GO to Pinpoint Test AZ
  ACM U3000:92 Control Module:Performance or Incorrect Operation   GO to Pinpoint Test AZ
  ACM U3000:94 Control Module:Unexpected Operation   GO to Pinpoint Test AZ
  ACM U3000:96 Control Module:Component Internal Failure   GO to Pinpoint Test AZ
  ACM U3003:16 Battery Voltage:Circuit Voltage Below Threshold   GO to Pinpoint Test AU
  ACM U3003:17 Battery Voltage:Circuit Voltage Above Threshold   GO to Pinpoint Test AV
  APIM B1087:01 LIN Bus "A":General Electrical Failure   GO to Pinpoint Test J
  APIM B108E:01 Display:General Electrical Failure   GO to Pinpoint Test L
  APIM B108E:01 Display:General Electrical Failure   GO to Pinpoint Test M
  APIM B108E:02 Display:General Signal Failure   GO to Pinpoint Test L
  APIM B108E:02 Display:General Signal Failure   GO to Pinpoint Test M
  APIM B108E:4B Display:Over Temperature   GO to Pinpoint Test L
  APIM B108E:4B Display:Over Temperature   GO to Pinpoint Test M
  APIM B108E:63 Display:Circuit / Component Protection Time-Out   GO to Pinpoint Test L
  APIM B108E:87 Display:Missing Message   GO to Pinpoint Test L
  APIM B108E:87 Display:Missing Message   GO to Pinpoint Test M
  APIM B119F:01 GPS Antenna:General Electrical Failure   GO to Pinpoint Test T
  APIM B119F:13 GPS Antenna:Circuit Open   GO to Pinpoint Test T
  APIM B1252:11 USB Port:Circuit Short to Ground   GO to Pinpoint Test P
  APIM B1252:11 USB Port:Circuit Short to Ground   GO to Pinpoint Test Q
  APIM B1252:13 USB Port:Circuit Open   GO to Pinpoint Test P
  APIM B1252:13 USB Port:Circuit Open   GO to Pinpoint Test Q
  APIM B14FD:11 External Media Control Connectivity:Circuit Short To Ground   GO to Pinpoint Test Q
  APIM B1D79:11 Microphone Input:Circuit Short To Ground   GO to Pinpoint Test O
  APIM B1D79:12 Microphone Input:Circuit Short To Battery   GO to Pinpoint Test O
  APIM B1D79:13 Microphone Input:Circuit Open   GO to Pinpoint Test O
  APIM U0100:00 Lost Communication with ECM/PCM "A":No Sub Type Information   GO to Pinpoint Test AC
  APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module:No Sub Type Information   GO to Pinpoint Test AD
  APIM U0140:00 Lost Communication With Body Control Module:No Sub Type Information   GO to Pinpoint Test AE
  APIM U0151:00 Lost Communication With Restraints Control Module:No Sub Type Information   GO to Pinpoint Test AF
  APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module:No Sub Type Information   GO to Pinpoint Test AG
  APIM U0159:00 Lost Communication With Parking Assist Control Module "A":No Sub Type Information   GO to Pinpoint Test AH
  APIM U0162:00 Lost Communication With Navigation Display Module:No Sub Type Information   GO to Pinpoint Test L
  APIM U0162:00 Lost Communication With Navigation Display Module:No Sub Type Information   GO to Pinpoint Test M
  APIM U0184:00 Lost Communication With Radio:No Sub Type Information   GO to Pinpoint Test AI
  APIM U0198:00 Lost Communication With Telematic Control Module:No Sub Type Information   GO to Pinpoint Test AJ
  APIM U0208:00 Lost Communication With "Seat Control Module A":No Sub Type Information   GO to Pinpoint Test AK
  APIM U020C:00 Lost Communication with Wireless Accessory Charging Module "A":No Sub Type Information   GO to Pinpoint Test AL
  APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module - Left:No Sub Type Information   GO to Pinpoint Test AM
  APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module - Right:No Sub Type Information   GO to Pinpoint Test AN
  APIM U0238:00 Lost Communication With Digital Audio Control Module "D":No Sub Type Information   GO to Pinpoint Test AO
  APIM U023B:00 Lost Communication With Image Processing Module B:No Sub Type Information   GO to Pinpoint Test AP
  APIM U024B:00 Lost Communication with Seat Control Module "G":No Sub Type Information   GO to Pinpoint Test AQ
  APIM U024C:00 Lost Communication with Seat Control Module "G":No Sub Type Information   GO to Pinpoint Test AR
  APIM U0293:00 Lost Communication With Hybrid/EV Powertrain Control Module:No Sub Type Information   GO to Pinpoint Test AT
  APIM U0415:00 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module:No Sub Type Information   GO to Pinpoint Test AX
  APIM U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information   GO to Pinpoint Test AX
  APIM U0423:00 Invalid Data Received From Instrument Panel Cluster (IPC) Control Module:No Sub Type Information   GO to Pinpoint Test AX
  APIM U0452:00 Invalid Data Received From Restraints Control Module:No Sub Type Information   GO to Pinpoint Test AX
  APIM U1A00:87 Private Communication Network:Missing Message   GO to Pinpoint Test B
  APIM U2013:01 Switch Pack:Circuit / Component Protection Time-Out   GO to Pinpoint Test J
  APIM U2013:11 Switch Pack:General Electrical Failure   GO to Pinpoint Test J
  APIM U2013:12 Switch Pack:Circuit Voltage Below Threshold   GO to Pinpoint Test J
  APIM U2013:13 Switch Pack:Circuit Voltage Above Threshold   GO to Pinpoint Test J
  APIM U2017:45 Control Module Software #2:Program Memory Failure   GO to Pinpoint Test AY
  APIM U2017:51 Control Module Software #2:Not Programmed   GO to Pinpoint Test AY
  APIM U2017:52 Control Module Software #2:Not Activated   GO to Pinpoint Test AY
  APIM U2017:54 Control Module Software #2:Missing Calibration   GO to Pinpoint Test AY
  APIM U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AY
  APIM U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AY
  APIM U3000:04 Control Module:System Internal Failure   GO to Pinpoint Test AZ
  APIM U3000:09 Control Module:Component Failure   GO to Pinpoint Test AZ
  APIM U3000:41 Control Module:General Checksum Failure   GO to Pinpoint Test AZ
  APIM U3000:88 Control Module:Bus Off   GO to Pinpoint Test AW
  APIM U3003:16 Battery Voltage:Circuit Voltage Below Threshold   GO to Pinpoint Test AU
  APIM U3003:17 Battery Voltage:Circuit Voltage Above Threshold   GO to Pinpoint Test AV
  DSP B13FB:11 Audio Enable Line:Circuit Short To Ground   GO to Pinpoint Test D
  DSP B1A01:01 Speaker #1:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A01:11 Speaker #1:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A01:12 Speaker #1:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A01:13 Speaker #1:Circuit Open   GO to Pinpoint Test I
  DSP B1A02:01 Speaker #2:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A02:11 Speaker #2:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A02:12 Speaker #2:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A02:13 Speaker #2:Circuit Open   GO to Pinpoint Test I
  DSP B1A03:01 Speaker #3:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A03:11 Speaker #3:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A03:12 Speaker #3:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A03:13 Speaker #3:Circuit Open   GO to Pinpoint Test I
  DSP B1A04:01 Speaker #4:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A04:11 Speaker #4:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A04:12 Speaker #4:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A04:13 Speaker #4:Circuit Open   GO to Pinpoint Test I
  DSP B1A05:01 Speaker #5:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A05:11 Speaker #5:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A05:12 Speaker #5:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A05:13 Speaker #5:Circuit Open   GO to Pinpoint Test I
  DSP B1A06:01 Speaker #6:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A06:11 Speaker #6:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A06:12 Speaker #6:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A06:13 Speaker #6:Circuit Open   GO to Pinpoint Test I
  DSP B1A07:01 Speaker #7:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A07:11 Speaker #7:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A07:12 Speaker #7:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A07:13 Speaker #7:Circuit Open   GO to Pinpoint Test I
  DSP B1A08:01 Speaker #8:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A08:11 Speaker #8:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A08:12 Speaker #8:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A08:13 Speaker #8:Circuit Open   GO to Pinpoint Test I
  DSP B1A09:01 Speaker #9:General Electrical Failure   GO to Pinpoint Test I
  DSP B1A09:11 Speaker #9:Circuit Short To Ground   GO to Pinpoint Test I
  DSP B1A09:12 Speaker #9:Circuit Short To Battery   GO to Pinpoint Test I
  DSP B1A09:13 Speaker #9:Circuit Open   GO to Pinpoint Test I
  DSP U0140:00 Lost Communication With Body Control Module:No Sub Type Information   GO to Pinpoint Test AE
  DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module:No Sub Type Information   GO to Pinpoint Test AG
  DSP U0184:00 Lost Communication With Radio:No Sub Type Information   GO to Pinpoint Test AI
  DSP U0253:00 Lost Communication With Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AS
  DSP U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information   GO to Pinpoint Test AX
  DSP U201A:51 Control Module Main Calibration Data:Not Programmed   GO to Pinpoint Test AY
  DSP U2024:41 Control Module Cal-Config Data:General Checksum Failure   GO to Pinpoint Test AY
  DSP U2024:48 Control Module Cal-Config Data:Supervision Software   GO to Pinpoint Test AY
  DSP U2024:51 Control Module Cal-Config Data:Not Programmed   GO to Pinpoint Test AY
  DSP U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AY
  DSP U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AY
  DSP U3000:41 Control Module:General Checksum Failure   GO to Pinpoint Test AZ
  DSP U3000:42 Control Module:General Memory Failure   GO to Pinpoint Test AZ
  DSP U3003:16 Battery Voltage:Circuit Voltage Below Threshold   GO to Pinpoint Test AU
  DSP U3003:17 Battery Voltage:Circuit Voltage Above Threshold   GO to Pinpoint Test AV
  SCCM B137F:11 Steering Wheel Left Switch Pack:Circuit Short To Ground   GO to Pinpoint Test K
  SCCM B137F:13 Steering Wheel Left Switch Pack:Circuit Open   GO to Pinpoint Test K
  SCCM B137F:96 Steering Wheel Left Switch Pack:Component Internal Failure   GO to Pinpoint Test K
  SCCM B137F:9E Steering Wheel Left Switch Pack:Stuck On   GO to Pinpoint Test K
  SCCM B1380:11 Steering Wheel Right Switch Pack:Circuit Short To Ground   GO to Pinpoint Test K
  SCCM B1380:13 Steering Wheel Right Switch Pack:Circuit Open   GO to Pinpoint Test K
  SCCM B1380:96 Steering Wheel Right Switch Pack:Component Internal Failure   GO to Pinpoint Test K
  SCCM B1380:9E Steering Wheel Right Switch Pack:Stuck On   GO to Pinpoint Test K
  TCU B1246:11 GSM (Group System for Mobile) Antenna:Circuit Short To Ground   GO to Pinpoint Test V
  TCU B1246:13 GSM (Group System for Mobile) Antenna:Circuit Open   GO to Pinpoint Test V
  TCU B156D:55 TCU Customer Connectivity Settings Synchronization:Not Configured   GO to Pinpoint Test AY
  TCU B156D:89 TCU Customer Connectivity Settings Synchronization:ISO/SAE Reserved   GO to Pinpoint Test AY
  TCU B1D55:11 Antenna #2:Circuit Short To Ground   GO to Pinpoint Test W
  TCU B1D55:13 Antenna #2:Circuit Open   GO to Pinpoint Test W
  TCU U0100:00 Lost Communication with ECM/PCM "A":No Sub Type Information   GO to Pinpoint Test AC
  TCU U0140:00 Lost Communication With Body Control Module:No Sub Type Information   GO to Pinpoint Test AE
  TCU U0253:00 Lost Communication With Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AS
  TCU U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information   GO to Pinpoint Test AX
  TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AX
  TCU U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AY
  TCU U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AY
  TCU U3000:04 Control Module:System Internal Failure   GO to Pinpoint Test BA
  TCU U3000:09 Control Module:Componentl Failure   GO to Pinpoint Test BA
  TCU U3000:41 Control Module:General Checksum Failure   GO to Pinpoint Test AZ
  TCU U3000:42 Control Module:General Memory Failure   GO to Pinpoint Test AZ
  TCU U3000:52 Control Module:Not Activated   GO to Pinpoint Test BA
  TCU U3000:56 Control Module:Invalid / Incompatible Configuration   GO to Pinpoint Test AZ
  TCU U3003:16 Battery Voltage:Circuit Voltage Below Threshold   GO to Pinpoint Test AU
  TCU U3003:17 Battery Voltage:Circuit Voltage Above Threshold   GO to Pinpoint Test AV

Symptom Charts

Symptom Chart: Radio

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
A module does not respond to the diagnostic scan tool Refer to the Pinpoint Test  
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The AM radio is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test A
The FM radio is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test A
Poor AM reception Refer to the Pinpoint Test   GO to Pinpoint Test A
Poor FM reception Refer to the Pinpoint Test   GO to Pinpoint Test A
Continuous seek or scan in AM/ FM mode Refer to the Pinpoint Test   GO to Pinpoint Test A
Poor satellite radio reception Refer to the Pinpoint Test   GO to Pinpoint Test B
Poor sound quality or no sound while in satellite radio mode - all other functions operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test B
The satellite radio is inoperative or does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test B
The audio system does not operate correctly from the radio control panel Refer to the Pinpoint Test   GO to Pinpoint Test J
One or more audio steering wheel control button is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test K
Unable to change the audio source Refer to the Pinpoint Test   GO to Pinpoint Test D
The touchscreen displays Audio System Off at regular intervals Refer to the Pinpoint Test   GO to Pinpoint Test D

Symptom Chart: Speakers and Sound Quality - 4 Or 6 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
A loud popping sound is heard from the speakers when cycling the ignition Refer to the Pinpoint Test   GO to Pinpoint Test C
No sound from all speakers Refer to the Pinpoint Test   GO to Pinpoint Test D
The left speakers are inoperative when using Bluetooth and USB hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
The right speakers are inoperative when using Bluetooth and USB hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
Poor sound quality or distorted sound from one or more speakers (not all speakers) Refer to the Pinpoint Test   GO to Pinpoint Test E
The speed compensated volume does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test F
The left front door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right front door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The left front door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right front woofer door speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The left rear door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right rear door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G

Symptom Chart: Speakers and Sound Quality - 12 or 14 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
A loud popping sound is heard from the speakers when cycling the ignition Refer to the Pinpoint Test   GO to Pinpoint Test C
No sound from all speakers Refer to the Pinpoint Test   GO to Pinpoint Test D
The left speakers are inoperative when using Bluetooth and USB hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
The right speakers are inoperative when using Bluetooth and USB hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
Poor sound quality or distorted sound from one or more speakers (not all speakers) Refer to the Pinpoint Test   GO to Pinpoint Test E
The speed compensated volume does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test F
The instrument panel center speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The left front door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right front door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The left front door midrange speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The right front door midrange speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The left front door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The right front door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The left rear door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right rear door tweeter speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The left rear door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The right rear door woofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test G
The left D-pillar speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The right D-pillar speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H
The subwoofer speaker is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test H

Symptom Chart: Radio Control Panel

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
The radio control panel illumination is inoperative or does not dim Refer to the Pinpoint Test  
REFER to: Instrument Panel and Interior Switches Illumination (413-00 Instrument Panel and Interior Switches Illumination, Diagnosis and Testing).

Symptom Chart: Display Unit (Non-Touchscreen)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
The display unit is blank or black Refer to the Pinpoint Test   GO to Pinpoint Test L
One or more button on the display unit is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test L
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear Refer to the Pinpoint Test   GO to Pinpoint Test L
The image on the display unit is locked or frozen Refer to the Pinpoint Test   GO to Pinpoint Test L
The compass is inoperative or does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test T

Symptom Chart: Display Unit (Touchscreen)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
The display unit is blank or black Refer to the Pinpoint Test   GO to Pinpoint Test M
The display unit is not responsive to touch Refer to the Pinpoint Test   GO to Pinpoint Test M
The display unit is slow to respond to touch Refer to the Pinpoint Test   GO to Pinpoint Test M
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear Refer to the Pinpoint Test   GO to Pinpoint Test M
The image on the display unit is locked or frozen Refer to the Pinpoint Test   GO to Pinpoint Test M

Symptom Chart: SYNC Features/Media/Phone

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
The SYNC system does not operate correctly from the radio control panel Refer to the Pinpoint Test   GO to Pinpoint Test J
One or more steering wheel SYNC control button is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test K
The left speakers are inoperative when using Bluetooth and media hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
The right speakers are inoperative when using Bluetooth and media hub SYNC features Refer to the Pinpoint Test   GO to Pinpoint Test N
The SYNC system audible prompts are inoperative or do not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test N
During a phone call, no incoming audio is heard in the vehicle Refer to the Pinpoint Test   GO to Pinpoint Test N
Poor sound quality, distorted, or no sound while in SYNC mode Refer to the Pinpoint Test   GO to Pinpoint Test N
Voice commands are inoperative or outgoing audio is not transmitted during a phone call Refer to the Pinpoint Test   GO to Pinpoint Test O
An individual Bluetooth device or feature is inoperative Device compatibility   GO to Pinpoint Test R
Unable to pair Bluetooth device or the Bluetooth functionality is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test R
A USB device is not recognized by the SYNC system or audio files on a USB device are not found using the SYNC system from the USB port - vehicles equipped with a non-touchscreen display Refer to the Pinpoint Test   GO to Pinpoint Test P
A USB device is not recognized by the SYNC system or audio files on a USB device are not found using the SYNC system from one or both USB ports - vehicles equipped with a touchscreen display Refer to the Pinpoint Test   GO to Pinpoint Test Q
The 911 Assist or Emergency Assistance Not Operational message displays Refer to the Pinpoint Test   GO to Pinpoint Test S
SYNC AppLink is inoperative or does not operate correctly - vehicles equipped with a non-touchscreen display Refer to the Pinpoint Test   GO to Pinpoint Test X
SYNC AppLink is inoperative or does not operate correctly - vehicles equipped with a touchscreen display Refer to the Pinpoint Test   GO to Pinpoint Test Y
The Deep Sleep Mode Activated notification is received on the FordPass App Refer to the Pinpoint Test   GO to Pinpoint Test U
SYNC Connect is inoperative or does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test V
Android Auto™ or Apple CarPlay™ is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test Z
The SYNC system is unable to discover or log onto an unsecure Wi-Fi connection Refer to the Owner Literature   GO to Pinpoint Test AA
The SYNC Wi-Fi connection does not operate correctly Refer to the Owner Literature   GO to Pinpoint Test AA
A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot Wi-Fi Hotspot or visibility is turned off   GO to Pinpoint Test AA
A device (smartphone/laptop) is unable to log onto the vehicle Wi-Fi Hotspot connection after a master reset from SYNC Master Reset menu SSID and password set to factory defaults   GO to Pinpoint Test AA
The vehicle Wi-Fi hotspot feature is inoperative, experiencing poor data speed or cannot stream any data Refer to the Pinpoint Test   GO to Pinpoint Test W

Symptom Chart: Navigation/Compass

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
The compass is inoperative or does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test T
Navigation is inoperative or does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test T
SIRIUS Travel Link™ or digital radio data link is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test B

Pinpoint Tests


PINPOINT TEST A : POOR AM (AMPLITUDE MODULATION) - FM (FREQUENCY MODULATION) RECEPTION

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Audio Unit Coaxial Cable Connections


Item Part Number Description
1 Audio unit antenna connection
2 FM2 diversity antenna connection
3 Satellite radio connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1D55:11 Antenna #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the FM 2 diversity antenna cable.
ACM B1D55:15 Antenna #2: Circuit Short To Battery Or Open Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage or an open from the FM 2 diversity antenna cable.

Possible Sources

  • Wiring, terminals, or connectors
  • Ignition system
  • Noise suppression equipment
  • Generator
  • Antenna cable
  • Antenna amplifier
  • On-glass antenna grid
  • ACM

Visual Inspection and Pre-checks

  • Inspect the on-glass antenna grid for damage.
NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.
A1 CHECK THE AUDIO SYSTEM RECEPTION WITH THE REAR WINDOW DEFROST ACTIVATED
  • Ignition OFF.
  • Operate the audio system in AM/ FM mode.
  • Observe the radio reception.
  • NOTE: Non-hybrid vehicles require the engine is running for the rear window defrost to activate. Hybrid vehicles require the vehicle to be in "Ready to Run" mode. Activate the rear window defrost function and observe the radio reception.

Does the poor reception only occur with the rear window defrost activated?
Yes For non-hybrid vehicles, GO to A2
For hybrid vehicles, GO to A3
No GO to A6

A2 CHECK THE AUDIO SYSTEM RECEPTION WITH THE ENGINE RUNNING AND THE REAR DEFROST FUNCTION DEACTIVATED
  • Start the engine.
  • NOTE: Make sure the rear window defrost function is not activated. Operate the audio system in AM/ FM mode.

Does the poor reception occur with the rear window defrost function deactivated?
Yes GO to A4
No GO to A3

A3 CHECK THE REAR WINDOW DEFROST GRID FOR CORRECT OPERATION
  • Check the operation of the rear window defrost grid. Make sure all of the grid lines are operating correctly.

Does the rear window defrost grid operate correctly?
Yes INSTALL a new noise suppression filter at the rear window defrost grid power supply connection.
REFER to: Antenna Isolator Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

A4 CHECK THE GENERATOR
  • Ignition OFF.
  • Disconnect the generator "A" connector.
  • NOTE: Do not increase the engine RPM above idle speed. Start the engine.
  • NOTE: Do not increase the RPM above idle speed. Incorrect test results may occur if the engine speed is increased above idle. With the engine at idle only, operate the audio system in AM/ FM mode.

Is the reception OK?
Yes INSTALL a new generator. REFER to the appropriate Removal and Installation procedure in section 414-02.
No GO to A5

A5 CHECK THE IGNITION CIRCUITS
  • Ignition OFF.
  • Connect the generator "A" connector.
  • Inspect the engine compartment and make sure all ignition coils are correctly and securely connected, and no cracks are visible in the coil housings.
  • Inspect all the wiring harnesses and connectors for damaged insulation and loose or broken conditions.

Are the ignition components OK?
Yes USE a jumper cable to ground various parts of the vehicle to the frame (for example: engine, fenders, quarter panels, stone deflectors, air cleaner, and body sheet metal). When the noise is eliminated, PROVIDE a permanent ground where necessary.
No REPAIR the ignition system as necessary.

A6 INSPECT THE ANTENNA ON-GLASS GRID
  • Ignition OFF.
  • Inspect the connection to the antenna amplifier and the antenna on-glass grid for damage.

Is the connection to the antenna amplifier OK and the on-glass antenna grid free from damage?
Yes GO to A7
No REPAIR the connection to the antenna amplifier or the window grid as necessary.

A7 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) ANTENNA VOLTAGE OUTPUT

NOTE: The AM/ FM1 antenna cable is also known as the audio unit antenna cable.

  • Ignition OFF.
  • Disconnect the AM/ FM1 antenna cable from the ACM .
  • Disconnect the FM2 diversity antenna cable from the ACM (if equipped).
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the ACM. Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    AM/ FM1 antenna cable core at the ACM (component side)   Ground
    FM2 antenna cable core at the ACM (component side) (if equipped)   Ground

Is the voltage greater than 11 volts?
Yes GO to A8
No GO to A11

A8 CHECK FOR VOLTAGE TO THE ANTENNA AMPLIFIERS

NOTE: The audio unit antenna cable is also known as the AM/ FM1 antenna cable.

  • Ignition OFF.
  • Connect the AM/ FM1 antenna cable from the ACM .
  • Connect the FM2 diversity antenna cable from the ACM (if equipped).
  • Disconnect the audio unit antenna cable from the AM/ FM1 antenna amplifier.
  • Disconnect the FM2 diversity antenna cable from the FM2 diversity antenna amplifier (if equipped).
  • Ignition ON.
  • Measure:

      Audio Unit Antenna Cable


    Positive Lead Measurement / Action Negative Lead
    audio unit antenna cable core   Ground

      FM2 Diversity Antenna Cable


    Positive Lead Measurement / Action Negative Lead
    FM2 diversity antenna cable core   Ground

Is the voltage greater than 10 volts?
Yes GO to A9
No IDENTIFY the antenna cable with the open or short condition. INSTALL a new cable in question.
REFER to: Audio Unit Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

A9 ISOLATE THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) 1 ANTENNA AMPLIFIER
  • Ignition OFF.
  • Connect the FM2 diversity antenna cable to the FM2 diversity antenna amplifier (if equipped).
  • Install a new AM/ FM1 antenna amplifier.
    REFER to: AM/FM1 Antenna Amplifier (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Operate the audio system in AM/ FM mode.

Is the reception OK?
Yes The system is operating correctly. The concern was caused by the antenna amplifier.
No If equipped with a diversity FM2 antenna, GO to A10
If not equipped with a diversity FM2 antenna, GO to A11

A10 ISOLATE THE FM (FREQUENCY MODULATION) 2 DIVERSITY ANTENNA AMPLIFIER
  • Install a new FM2 diversity antenna amplifier.
    REFER to: FM2 Diversity Antenna Amplifier (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Operate the audio system in FM mode.

Is the reception OK?
Yes The system is operating correctly. The concern was caused by the antenna amplifier.
No GO to A11

A11 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B : SATELLITE RADIO/SIRIUS TRAVEL LINK ™/DIGITAL RADIO DATA LINK CONCERN

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

When a satellite radio subscription is active, the ESN of the satellite radio receiver built into the ACM associates with the VIN.

Audio Unit Coaxial Cable Connections


Item Part Number Description
1 Audio unit antenna connection
2 FM2 diversity antenna connection
3 Satellite radio connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A89:11 Satellite Antenna: Circuit Short To Ground Sets in continuous memory or during the on-demand self-test when the ACM detects a short to ground from the satellite radio cable.
ACM B1A89:13 Satellite Antenna: Circuit Open Sets in continuous memory or during the on-demand self-test when the ACM detects an open from the satellite radio cable.
APIM U1A00:87 Private Communication Network: Missing Message Sets during the on-demand self-test when the APIM does not receive a valid response from the ACM over the SDL circuits.

Possible Sources

  • Expired subscription
  • Compass concern
  • Obstructions in the antenna line of sight
  • Incorrectly matched ESN
  • Wiring, terminals, or connectors
  • Lower satellite radio antenna cable (includes GPS splitter)
  • Satellite radio antenna
  • ACM
  • APIM
NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.
NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some satellite radio/Sirius Travel Link ™/digital radio data link concerns.
B1 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U1A00:87
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U1A00:87 present?
Yes GO to B15
No For vehicles equipped with a satellite radio, GO to B2
For vehicles not equipped with a satellite radio, GO to B13

B2 CHECK FOR PREVIEW CHANNEL 1
  • Select channel 1.

Does the satellite radio system receive channel 1 with normal sound quality?
Yes GO to B3
No GO to B9

B3 VERIFY AN ACTIVE SUBSCRIPTION
  • For a Sirius Radio concern, operate the audio system in satellite radio mode and observe the display.
  • For a Sirius Travel Link™ concern, access the "Subscription Info" selection in the SIRIUS Travel Link™ menu.

Does the display indicate the subscription has expired?
Yes GO to B4
No For a satellite radio concern, GO to B6
For a SIRIUS Travel Link™ concern, GO to B7

B4 CHECK THE VEHICLE SERVICE HISTORY FOR ACM (AUDIO FRONT CONTROL MODULE) REPLACEMENT
  • Check the vehicle service history and determine if the ACM was replaced.

Does the vehicle service history indicate the ACM was recently replaced?
Yes GO to B5
No The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.

B5 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the customer file match the VIN and the ESN retrieved from the vehicle.

Does the VIN and the ESN on the SIRIUS customer file match the ESN and VIN retrieved from the vehicle?
Yes The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.
No INSTRUCT the vehicle owner to contact SIRIUS to update the VIN and the ESN retrieved from the vehicle.

B6 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the file match the VIN and the ESN retrieved from the vehicle.
  • Drive the vehicle to an open location free from obstacles such as tall buildings or large trees.
  • Operate the audio system in satellite radio mode.
  • NOTE: It may take up to 30 minutes for the activation signal to be received and satellite radio functions to operate. Request for SIRIUS to send the activation signal to the vehicle 2-3 times.
  • Operate multiple channels with the audio system in satellite radio mode.

Does the satellite radio system receive multiple channels with normal sound quality?
Yes The system is operating correctly. The concern may have been caused by the SIRIUS file information not matching the vehicle or a result of the activation signal needing to be resent.
No GO to B11

B7 SEND THE SIRIUS ACTIVATION SIGNAL AND RECHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION
  • Refer to the SIRIUS website and input the ESN to send the activation signal to the vehicle.
  • Wait 15 minutes.
  • NOTE: If the SIRIUS Travel Link™ features have not updated, input the ESN again to re-send/refresh the signal. Operate various SIRIUS Travel Link™ features and observe their functionality.

Does the SIRIUS Travel Link™ operate correctly?
Yes The system is operating correctly at this time.
No GO to B8

B8 ALLOW THE CATEGORIES TO UPDATE AND THEN CHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION

NOTE: The frequency of category updates varies and depends on the category and the SIRIUS infrastructure data load.

  • Drive the vehicle to an outdoor location that is free from obstacles such as tall buildings and large trees.
  • Operate various SIRIUS Travel Link™ features and observe their functionality.

Does SIRIUS Travel Link™ operate correctly?
Yes The system is operating correctly at this time. The concern was a result of obstructions in the antenna line of sight.
No GO to B11

B9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable at the ACM .
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite cable core (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B10
No GO to B19

B10 CHECK FOR VOLTAGE TO THE SATELLITE ANTENNA/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable at the ACM .
  • Disconnect the satellite radio antenna cable at the GPS/satellite antenna.
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    GPS antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B11
No IDENTIFY the cable with the open or short. INSTALL a new satellite radio/GPS cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

B11 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE
  • INSTALL a new satellite radio/GPS antenna splitter cable.
    REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.

Does the system in question operate correctly?
Yes The repair is complete. The concern was caused by the original satellite radio/GPS antenna splitter cable.
No GO to B12

B12 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the GPS/satellite radio antenna.
    REFER to: Roof Mounted Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Inspect for corrosion on the audio unit antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?
Yes GO to B14
No REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

B13 VERIFY THE COMPASS OPERATES CORRECTLY
  • Ignition ON.
  • Check the operation of the compass and make sure it operates correctly.

Does the compass operate correctly?
Yes GO to B14
No GO to Pinpoint Test T

B14 ISOLATE THE SATELLITE RADIO ANTENNA
  • INSTALL a new roof mounted antenna.
    REFER to: Roof Mounted Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.
  • For a digital radio data link concern, check the operation of the digital radio data link.

Does the system in question operate correctly?
Yes The repair is complete. The concern was caused by the original satellite radio/GPS antenna.
No GO to B15

B15 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C4240A and C4240B .
  • Disconnect APIM C2383A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to B16
No REPAIR the circuit in question.

B16 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to B17

B17 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TOGETHER
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C2383A-28
      C2383A-51   C2383A-52

Is the resistance greater than 10,000 ohms?
Yes GO to B18
No REPAIR the circuits.

B18 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      ACM C4240A


    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C4240A-14
      C2383A-28   C4240A-25

    Click to display connectors

      ACM C4240B


    Positive Lead Measurement / Action Negative Lead
      C2383A-51   C4240B-18
      C2383A-52   C4240B-29

Are the resistances less than 3 ohms?
Yes GO to B19
No REPAIR the circuit in question.

B19 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition ON.
  • Disconnect and inspect all ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to B20
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B20 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C : A LOUD POPPING SOUND IS HEARD FROM THE SPEAKERS WHEN CYCLING THE IGNITION

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Possible Sources

  • Network communication concern
  • BCM concern
  • ACM
C1 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to C2

C2 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the ACM DTC Chart in this section.
No GO to C3

C3 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D : NO SOUND FROM ALL SPEAKERS

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

A short to ground or voltage in the circuitry to one of the speakers may cause multiple speakers to lose sound due to the built-in overload protection feature of the ACM. In this case, a speaker fault DTC sets.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B150C:01 Automobile Audio Bus (A2B) Node 1: General Electrical Failure Sets in continuous memory and during the self-test when the ACM detects short circuits from the A2B cable.
ACM B150C:11 Automobile Audio Bus (A2B) Node 1: Circuit Short To Ground Sets in continuous memory and during the self-test when the ACM detects a short to ground from the A2B cable circuitry.
ACM B150C:12 Automobile Audio Bus (A2B) Node 1: Circuit Short To Battery Sets in continuous memory and during the self-test when the ACM detects a short to voltage from the A2B cable circuitry.
ACM B150C:13 Automobile Audio Bus (A2B) Node 1: Circuit Open Sets in continuous memory and during the self-test when the ACM detects an open within the A2B circuitry.
ACM B150C:55 Automobile Audio Bus (A2B) Node 1: Not Configured Sets in continuous memory and during the self-test when the ACM detects a fault attempting to configure the audio DSP module as Slave 1.
ACM B150C:87 Automobile Audio Bus (A2B) Node 1: Missing Message Sets in continuous memory and during the self-test when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B150C:8F Automobile Audio Bus (A2B) Node 1: Erratic Sets in continuous memory and during the self-test when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B150C:95 Automobile Audio Bus (A2B) Node 1: Incorrect Assembly Sets in continuous memory and during the self-test when the ACM detects the A2B cable circuitry is reversed.
ACM B1511:01 Automobile Audio Bus (A2B) Master Node: General Electrical Failure Sets in continuous memory and during the self-test when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B1511:11 Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground Sets in continuous memory and during the self-test when the ACM detects a short to ground from the Automobile Audio Bus (A2B).
ACM B1511:12 Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery Sets in continuous memory and during the self-test when the ACM detects a short to voltage from the Automobile Audio Bus (A2B).
ACM B1511:13 Automobile Audio Bus (A2B) Master Node: Circuit Open Sets in continuous memory and during the self-test when the ACM detects an open from the Automobile Audio Bus (A2B) cable.
ACM B1511:95 Automobile Audio Bus (A2B) Master Node: Incorrect Assembly Sets in continuous memory and during the self-test when the ACM detects the A2B cable circuitry is reversed.
DSP B13FB:11 Audio Enable Line: Circuit Short To Ground Sets in continuous memory when the audio DSP module does not detect the correct voltage signal from the enable circuit 5 seconds after receiving the ignition mode RUN message from the BCM.

Possible Sources

  • Network communication concern
  • Wiring, terminals, or connectors
  • Automobile Audio Bus (A2B) cable
  • Module configuration
  • DSP
  • ACM
D1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to D2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D2 VERIFY THE APIM (SYNC MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the APIM pass the network test?
Yes If equipped with the 4 or 6 speaker system, GO to D4
If equipped with the 12 or 14 speaker system, GO to D3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D3 VERIFY THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the DSP pass the network test?
Yes GO to D4
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the APIM DTC Chart in this section.
No GO to D5

D5 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For any Automobile Audio Bus (A2B) DTC, GO to D13
For all other Diagnostic Trouble Codes (DTCs), REFER to the ACM DTC Chart in this section.
No If equipped with the 4 or 6 speaker system, GO to D15
If equipped with the 12 or 14 speaker system, GO to D6

D6 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes GO to Pinpoint Test I
No GO to D7

D7 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR CORRECT VOLTAGE
  • Ignition OFF.
  • Disconnect DSP C4326A .
  • Ignition ON.
  • Turn the audio system on.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4326A-3   Ground

Is the voltage between 3.5 and 7 volts?
Yes GO to D12
No GO to D8

D8 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C4240B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4326A-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D9
No REPAIR the circuit.

D9 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4326A-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to D10

D10 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4326A-3   C4240B-23

Is the resistance less than 3 ohms?
Yes GO to D11
No REPAIR the circuit.

D11 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) CONFIGURATION
  • Connect DSP C4326A .
  • Connect ACM C4240B .
  • Ignition ON.
  • Carry out the PMI\ programming for the ACM using as-built data.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to D13

D12 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONFIGURATION
  • Ignition OFF.
  • Connect DSP C4326A .
  • Ignition ON.
  • Carry out the PMI programming for the DSP using as-built data.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to D13

D13 CHECK THE AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new Automobile Audio Bus (A2B) cable.
    REFER to: Automotive Audio Bus (AAB) Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause was caused by the Automobile Audio Bus (A2B) cable.
No GO to D14

D14 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to D15
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D15 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB , SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E : POOR SOUND QUALITY OR DISTORTED SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS)

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Audio signals are sent to the speakers in the form of AC voltage, resulting in clear audio output.

Possible Sources

  • Loose component fasteners
  • Loose door handle, lock or other trim panel components and fasteners
  • Loose items in storage areas
  • Loose speaker grilles
  • Loose wire harnesses or wire harness fasteners
  • Speaker
  • Trim panel
  • Water shield bonding and placement

Visual Inspection and Pre-checks

  • Any map pockets and storage compartments (including cup holders) for contents that can rattle (if equipped)
  • Door pull cup attachments for correct fit (if equipped)
  • Door switch bezels for correct fit (if equipped)
  • Speaker grilles for correct fit
  • Trim panels for correct fit
E1 ISOLATE THE ZONE
  • Download all the diagnostic sound tracks to a suitable USB flash drive and connect it to the media hub.
    REFER to: Speaker Audio Test (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Operate the audio system in USB mode using the downloaded audio files.
  • Using the audio system fade and balance settings, adjust the audio sound to each of the zones and use the 6 diagnostic sound tracks to isolate the poor sound quality.
  • Locate and apply pressure to the trim panel(s) around the poor sound quality area in question.

Does applying pressure to a trim panel reduce or eliminate the noise?
Yes REPAIR or REPLACE the trim panel as needed.
No GO to E2

E2 REMOVE AND INSPECT BEHIND/UNDERNEATH THE SUSPECT TRIM PANEL
  • Remove the trim panel to access the suspect speaker.
  • Operate the audio system in USB mode using the downloaded audio files.
  • Validate where the poor sound quality area is located.
  • Check:
    • Trim panel for loose components (speaker grille for example) around the speaker area.
    • Trim panel joining components for missing or broken pieces.
    • Door latch mechanical parts for correct attachment.
    • Wire harnesses for correct routing and attachment.
    • Water shield for correct placement (speaker air path not blocked).
    • Water shield for correct bonding to sheet metal.
    • Storage areas for loose items.
    • All safety belt retractors.
    • All speaker bracket and related fasteners. Make sure they are secure and tightened to specified torque.

Is the source of the noise located?
Yes REPAIR or REPLACE any loose or broken component or fastener as necessary.
No GO to E3

E3 CHECK THE SUSPECT SPEAKER FOR WATER INTRUSION
  • Inspect for watermarks.
  • Check the following speaker components:
    • Cone
    • Magnet
    • Basket

Are any watermarks present on the speaker?
Yes VERIFY the water shield is in the correct location, REPAIR or REPLACE any trim, door or speaker seal as required. DRY the speaker in question. TEST the system for normal operation.
No GO to E4

E4 ISOLATE THE SUSPECT SPEAKER TO VERIFY NOISE
  • Remove the suspect speaker from its location and leave the speaker connected to the harness.
  • Hold the speaker away from any trim panel and make sure the speaker is isolated from contact.
  • Operate the audio system in USB mode using the downloaded audio files.

Is the noise still present in the suspect speaker?
Yes INSTALL a new speaker for the one in question.
No LOCATE the source of the noise and REPAIR as necessary.

PINPOINT TEST F : THE SPEED COMPENSATED VOLUME DOES NOT OPERATE CORRECTLY

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Possible Sources

  • Speed compensated volume setting
  • Speed signal concern
  • Network communication concern
  • ACM
  • DSP
F1 CHECK THE SPEEDOMETER OPERATION
  • Verify speedometer operates correctly.

Does the speedometer operate correctly?
Yes GO to F2
No
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

F2 CHECK THE SPEED COMPENSATED VOLUME SETTING

NOTE: Refer to the Owner Literature to access the speed compensated volume settings.

  • Turn the speed compensated volume off.
  • Operate the audio system in AM/ FM mode.
  • Drive the vehicle at various speeds and observe the speaker volume.
  • Set the speed compensated volume to maximum compensation.
  • Operate the audio system in AM/ FM mode.
  • Drive the vehicle at various speeds and observe the speaker volume.

Does the volume remain constant with the speed compensated volume turned off, and increase and decrease with vehicle speed with the speed compensated volume set to maximum?
Yes The system is operating correctly at this time. INFORM the vehicle owner in the correct usage of the speed compensated volume feature.
No For vehicles equipped with the 4 or 6 speaker system, GO to F3
For vehicles equipped with the 12 or 14 speaker system, GO to F4

F3 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the ACM DTC Chart in this section.
No GO to F6

F4 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DSP DTC Chart in this section.
No GO to F5

F5 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G : ONE OR MORE SPEAKER IS INOPERATIVE - ACM (AUDIO FRONT CONTROL MODULE) CONTROLLED 4 OR 6 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A01:01 Speaker #1: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left front door woofer or tweeter (if equipped) speaker circuits.
ACM B1A01:11 Speaker #1: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left front door woofer or tweeter (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:12 Speaker #1: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front door woofer or tweeter (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:13 Speaker #1: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left front door woofer or tweeter (if equipped) speaker circuits.
ACM B1A02:01 Speaker #2: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right front door woofer or tweeter (if equipped) speaker circuits.
ACM B1A02:11 Speaker #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right front door woofer or tweeter (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:12 Speaker #2: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front door woofer or tweeter (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:13 Speaker #2: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right front door woofer or tweeter (if equipped) speaker circuits.
ACM B1A03:01 Speaker #3: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right rear door woofer speaker circuits.
ACM B1A03:11 Speaker #3: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:12 Speaker #3: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:13 Speaker #3: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right rear door woofer speaker circuits.
ACM B1A04:01 Speaker #4: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left rear door woofer speaker circuits.
ACM B1A04:11 Speaker #4: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:12 Speaker #4: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:13 Speaker #4: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left rear door woofer speaker circuits.
ACM B1A07:13 Speaker #7: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left front speaker circuits.
ACM B1A08:13 Speaker #8: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right front speaker circuits.
ACM B1A09:13 Speaker #9: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right rear speaker circuits.
ACM B1A10:13 Speaker #10: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left rear speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • ACM
NOTE: On vehicles equipped with tweeter speakers, the door speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.
G1 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect ACM C4240A .
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   Ground
      C591-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   Ground
      C503-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C612-1   Ground
      C612-4   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   Ground
      C804-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G2
No REPAIR the circuit in question.

G2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   Ground
      C591-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   Ground
      C503-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C612-1   Ground
      C612-4   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   Ground
      C804-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to G3

G3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

NOTE: On vehicles equipped with tweeter speakers, make sure both door speakers of the door in question are disconnected.

  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C591-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   C503-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C612-1   C612-4

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C804-4

Are the resistances greater than 10,000 ohms?
Yes GO to G4
No REPAIR the circuits.

G4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C4240A-8
      C591-3   C4240A-7

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C4240A-3
      C645-3   C4240A-2

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   C4240A-8
      C503-4   C4240A-7

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C612-1   C4240A-3
      C612-4   C4240A-2

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C4240A-6
      C702-4   C4240A-5

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C4240A-10
      C804-4   C4240A-9

Are the resistances less than 3 ohms?
Yes GO to G5
No REPAIR the circuit in question.

G5 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER
  • Connect ACM C4240A .
  • Ignition ON.
  • Operate the audio system in AM/ FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C591-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C503-1   C503-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C612-1   C612-4

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C804-4

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to G6

G6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H : ONE OR MORE SPEAKER IS INOPERATIVE - ACM (AUDIO FRONT CONTROL MODULE) CONTROLLED 12 OR 14 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A01:01 Speaker #1: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right D-pillar speaker circuits.
ACM B1A01:11 Speaker #1: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right D-pillar speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:12 Speaker #1: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right D-pillar speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:13 Speaker #1: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right D-pillar speaker circuits.
ACM B1A02:01 Speaker #2: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left D-pillar speaker circuits.
ACM B1A02:11 Speaker #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left D-pillar speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:12 Speaker #2: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left D-pillar speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:13 Speaker #2: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left D-pillar speaker circuits.
ACM B1A03:01 Speaker #3: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right front door tweeter speaker circuits.
ACM B1A03:11 Speaker #3: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right front door tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:12 Speaker #3: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front door tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:13 Speaker #3: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right front door tweeter speaker circuits.
ACM B1A04:01 Speaker #4: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left front door tweeter speaker circuits.
ACM B1A04:11 Speaker #4: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left front door tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:12 Speaker #4: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front door tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:13 Speaker #4: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left front door tweeter speaker circuits.
ACM B1A07:13 Speaker #7: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right D-pillar speaker circuits.
ACM B1A08:13 Speaker #8: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left D-pillar speaker circuits.
ACM B1A09:13 Speaker #9: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right front door tweeter speaker circuits.
ACM B1A10:13 Speaker #10: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left front door tweeter speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • ACM
H1 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect ACM C4240A .
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   Ground
      C591-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C4337-1   Ground
      C4337-3   Ground

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   Ground
      C485-3   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to H2
No REPAIR the circuits.

H2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   Ground
      C591-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C4337-1   Ground
      C4337-3   Ground

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   Ground
      C485-3   Ground

Is any voltage present?
Yes REPAIR the circuits.
No GO to H3

H3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C591-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C4337-1   C4337-3

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C485-3

Are the resistances greater than 10,000 ohms?
Yes GO to H4
No REPAIR the circuits.

H4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C4240A-6
      C591-3   C4240A-5

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C4240A-10
      C645-3   C4240A-9

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C4337-1   C4240A-3
      C4337-3   C4240A-2

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C4240A-8
      C485-3   C4240A-7

Are the resistances less than 3 ohms?
Yes GO to H5
No REPAIR the circuit in question.

H5 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER
  • Connect ACM C4240A .
  • Ignition ON.
  • Operate the audio system in AM/ FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C591-1   C591-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C4337-1   C4337-3

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C485-3

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to H6

H6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I : ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED SPEAKERS

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP B1A01:01 Speaker #1: General Electrical Failure Sets during the on-demand self-test when the DSP detects the subwoofer speaker circuits are shorted together.
DSP B1A01:11 Speaker #1: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the subwoofer speaker circuits.
DSP B1A01:12 Speaker #1: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the subwoofer speaker circuits.
DSP B1A01:13 Speaker #1: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the subwoofer speaker circuits.
DSP B1A02:01 Speaker #2: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A02:11 Speaker #2: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A02:12 Speaker #2: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A02:13 Speaker #2: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A03:01 Speaker #3: General Electrical Failure Sets during the on-demand self-test when the DSP detects the left rear door woofer speaker circuits are shorted together.
DSP B1A03:11 Speaker #3: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the left rear door woofer speaker circuits.
DSP B1A03:12 Speaker #3: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the left rear door woofer speaker circuits.
DSP B1A03:13 Speaker #3: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the left rear door woofer speaker circuits.
DSP B1A04:01 Speaker #4: General Electrical Failure Sets during the on-demand self-test when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A04:11 Speaker #4: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A04:12 Speaker #4: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A04:13 Speaker #4: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A05:01 Speaker #5: General Electrical Failure Sets during the on-demand self-test when the DSP detects the subwoofer speaker circuits are shorted together.
DSP B1A05:11 Speaker #5: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the subwoofer speaker circuits.
DSP B1A05:12 Speaker #5: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the subwoofer speaker circuits.
DSP B1A05:13 Speaker #5: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the subwoofer speaker circuits.
DSP B1A06:01 Speaker #6: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A06:11 Speaker #6: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A06:12 Speaker #6: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A06:13 Speaker #6: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A07:01 Speaker #7: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A07:11 Speaker #7: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A07:12 Speaker #7: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A07:13 Speaker #7: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A08:01 Speaker #8: General Electrical Failure Sets during the on-demand self-test when the DSP detects the instrument panel center speaker circuits are shorted together.
DSP B1A08:11 Speaker #8: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the instrument panel center speaker circuits.
DSP B1A08:12 Speaker #8: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the instrument panel center speaker circuits.
DSP B1A08:13 Speaker #8: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the instrument panel center speaker circuits.
DSP B1A09:01 Speaker #9: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right rear door woofer speaker circuits are shorted together.
DSP B1A09:11 Speaker #9: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right rear door woofer speaker circuits.
DSP B1A09:12 Speaker #9: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right rear door woofer speaker circuits.
DSP B1A09:13 Speaker #9: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right rear door woofer speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • DSP
NOTE: The rear door speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.
I1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the ACM DTC Chart in this section.
No GO to I2

I2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected.

  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect DSP C4326B .
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   Ground
      C2356-2   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C506-1   Ground
      C506-3   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C602-1   Ground
      C602-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C662-1   Ground
      C662-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   Ground
      C744-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   Ground
      C844-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   Ground
      C836-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C4436-1   Ground
      C4436-2   Ground
      C4436-3   Ground
      C4436-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to I3
No REPAIR the circuit in question.

I3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   Ground
      C2356-2   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C506-1   Ground
      C506-3   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C602-1   Ground
      C602-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C662-1   Ground
      C662-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   Ground
      C744-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   Ground
      C844-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   Ground
      C836-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C4436-1   Ground
      C4436-2   Ground
      C4436-3   Ground
      C4436-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to I4

I4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C2356-2

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C506-1   C506-3

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C602-1   C602-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   C836-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C744-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C844-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   C836-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C4436-1   C4436-2
      C4436-3   C4436-4

Are the resistances greater than 10,000 ohms?
Yes GO to I5
No REPAIR the circuits.

I5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C4326B-13
      C2356-2   C4326B-3

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C506-1   C4326B-15
      C506-3   C4326B-5

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C602-1   C4326B-19
      C602-3   C4326B-9

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C4326B-17
      C536-4   C4326B-7

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C662-1   C4326B-14
      C662-4   C4326B-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C702-2
      C744-3   C702-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C804-2
      C844-3   C804-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C4326B-18
      C736-4   C4326B-8

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   C4326B-12
      C836-4   C4326B-2

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C4436-1   C4326B-20
      C4436-2   C4326B-10
      C4436-3   C4326B-16
      C4436-4   C4326B-6

Are the resistances less than 3 ohms?
Yes GO to I6
No REPAIR the circuit in question.

I6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is connected.

  • Connect DSP C4326A .
  • Ignition ON.
  • Operate the audio system in AM/ FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C2356-2

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C506-1   C506-3

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C602-1   C602-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C662-1   C662-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C744-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C844-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C836-1   C8036-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C4436-1   C4436-2
      C4436-3   C4436-4

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to I7

I7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J : THE AUDIO/SYNC SYSTEM DOES NOT OPERATE CORRECTLY FROM THE AUDIO CONTROL PANEL

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1087:01 LIN Bus "A": General Electrical Failure Sets in continuous memory and during the on-demand self-test when the APIM loses communication with the audio control panel.
APIM U2013:11 Switch Pack: Circuit Short To Ground Sets in continuous memory when the APIM detects a fault with a knob control on the audio control panel.
APIM U2013:12 Switch Pack: Circuit Short To Battery Sets in continuous memory when the APIM receives a low voltage message from the audio control panel.
APIM U2013:13 Switch Pack: Circuit Open Sets in continuous memory when the APIM receives a high voltage message from the audio control panel.
APIM U2013:01 Switch Pack: General Electrical Failure Sets in continuous memory and during the on-demand self-test when the APIM receives a continuous button press from the audio control panel for more than 2 minutes.

Possible Sources

  • Wiring, terminals, or connectors
  • Audio control panel
  • APIM
  • ACM
J1 CHECK FOR VOLTAGE TO THE AUDIO CONTROL PANEL
  • Ignition OFF.
  • Disconnect FCIMB .
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-1   Ground

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-1   Ground

Is the voltage greater than 11 volts?
Yes GO to J3
No GO to J2

J2 CHECK THE AUDIO CONTROL PANEL POWER SUPPLY CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280A .
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-1   C2280A-19

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-1   C2280A-19

Is the resistance less than 3 ohms?
Yes GO to J7
No REPAIR the circuit.

J3 CHECK THE AUDIO CONTROL PANEL GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-1   C2402-10

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-1   C2000-4

Is the voltage greater than 11 volts?
Yes GO to J4
No REPAIR the circuit.

J4 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect APIM C2383A .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-2   Ground

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to J5

J5 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-2   Ground

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to J6
No REPAIR the circuit.

J6 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Except Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2402-2   C2383A-44

    Click to display connectors

      Police Vehicles


    Positive Lead Measurement / Action Negative Lead
      C2000-3   C2383A-44

Is the resistance less than 3 ohms?
Yes INSTALL a new audio control panel.
REFER to: Audio Controls (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to J8
No REPAIR the circuit.

J7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the BCM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

J8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K : ONE OR MORE AUDIO/SYNC STEERING WHEEL CONTROL BUTTON IS INOPERATIVE

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
SCCM B137F:11 Steering Wheel Left Switch Pack: Circuit Short To Ground Set in continuous memory when the SCCM detects a short to ground from the left steering wheel switch input circuits.
SCCM B137F:13 Steering Wheel Left Switch Pack: Circuit Open Set in continuous memory and during the on-demand self-test when the SCCM detects an open from the left steering wheel switch input circuits.
SCCM B137F:96 Steering Wheel Left Switch Pack: Component Internal Failure Set in continuous memory and during the on-demand self-test when the SCCM detects a fault from the left steering wheel switch input circuits.
SCCM B137F:9E Steering Wheel Left Switch Pack: Stuck On Sets in continuous memory when the SCCM detects the left steering wheel switch is active for more than 2 minutes.
SCCM B1380:11 Steering Wheel Right Switch Pack: Circuit Short To Ground Set in continuous memory when the SCCM detects a short to ground from the right steering wheel switch input circuits.
SCCM B1380:13 Steering Wheel Right Switch Pack: Circuit Open Set in continuous memory and during the on-demand self-test when the SCCM detects an open from the right steering wheel switch input circuits.
SCCM B1380:96 Steering Wheel Right Switch Pack: Component Internal Failure Set in continuous memory and during the on-demand self-test when the SCCM detects a fault from the right steering wheel switch input circuits.
SCCM B1380:9E Steering Wheel Right Switch Pack: Stuck On Sets in continuous memory when the SCCM detects the right steering wheel switch is active for more than 2 minutes.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch
  • Clockspring
  • Steering wheel
  • SCCM
K1 CHECK FOR VOLTAGE TO THE STEERING WHEEL SWITCH
  • Ignition OFF.
  • Remove the driver airbag.
    REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).
  • Disconnect Right Steering Wheel Switch C2491 .
  • Disconnect Left Steering Wheel Switch C2490 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Right Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2491-2   C2491-5
      C2491-3   C2491-5
      C2491-4   C2491-5

    Click to display connectors

      Left Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2490-2   C2490-5
      C2490-3   C2490-5
      C2490-4   C2490-5

Are the voltages approximately 5 volts?
Yes INSTALL a new steering wheel switch. in question.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the concern is still present, REPLACE the other switch.
No GO to K2

K2 CHECK THE STEERING WHEEL HARNESS
  • Ignition OFF.
  • Disconnect Clockspring C218B .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 11 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 12 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 14 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 7 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 10 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 8 (component side) Upper Clockspring C218B, pin 9 (component side)

Are the voltages approximately 5 volts?
Yes REPAIR the steering wheel harness (open or short is present) or INSTALL a new steering wheel as necessary.
REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).
No GO to K3

K3 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) B137F:11 AND B1380:11
  • Using a diagnostic scan tool, carry out the SCCM self-test.

Is DTC B137F:11 or B1380:11 present?
Yes GO to K4
No GO to K5

K4 CHECK THE CLOCKSPRING FOR A SHORT TO GROUND
  • Ignition OFF.
  • Remove the clockspring.
    REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, clear the SCCM Diagnostic Trouble Codes (DTCs).
  • NOTE: DTC B137F:13 and B1380:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the SCCM self-test.

Is DTC B137F:11 or B1380:11 still present?
Yes GO to K6
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

K5 CHECK THE CLOCKSPRING FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 11 (component side) Lower Clockspring C218F, pin 5 (component side)
    Upper Clockspring C218B, pin 12 (component side) Lower Clockspring C218F, pin 6 (component side)
    Upper Clockspring C218B, pin 14 (component side) Lower Clockspring C218F, pin 8 (component side)
    Upper Clockspring C218B, pin 13 (component side) Lower Clockspring C218F, pin 7 (component side)
    Upper Clockspring C218B, pin 7 (component side) Lower Clockspring C218F, pin 1 (component side)
    Upper Clockspring C218B, pin 8 (component side) Lower Clockspring C218F, pin 2 (component side)
    Upper Clockspring C218B, pin 10 (component side) Lower Clockspring C218F, pin 4 (component side)
    Upper Clockspring C218B, pin 9 (component side) Lower Clockspring C218F, pin 3 (component side)

Are the resistances less than 3 ohms?
Yes GO to K6
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

K6 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the SCCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM.
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST L : THE DISPLAY UNIT (NON-TOUCHSCREEN) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B108E:01 Display: General Electrical Failure Sets in continuous memory when the APIM detects an error from the display unit.
APIM B108E:02 Display: General Signal Failure Sets in continuous memory when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4B Display: Over Temperature Sets in continuous memory when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:63 Display: Circuit/Component Protection Time-Out Sets in continuous memory and during the on-demand self-test when the APIM detects a button press request from the display unit for more than 2 minutes.
APIM B108E:87 Display: Missing Message Sets in continuous memory when the APIM loses communication to the display unit.
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the APIM loses communication to the display unit.

Possible Sources

  • Communication concern
  • Configuration concern
  • LVDS cable
  • Display unit
  • APIM
NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.
L1 CHECK FOR A NETWORK CONCERN

NOTE: The display screen is blank if a concern with the HS-CAN3 is present.

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM and the APIM pass the network test?
Yes GO to L2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

L2 CHECK FOR COMMUNICATION AND CONFIGURATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Code (CMDTCs).

Are any communication or configuration related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate module DTC Chart in the appropriate section.
No GO to L3

L3 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the ACM DTC Chart in this section.
No GO to L4

L4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B108E:01, B108E:02, B108E:4B, B108E:63, B108E:87 or U0162:00, GO to L5
For all other Diagnostic Trouble Codes (DTCs), REFER to the APIM DTC Chart in this section.
No GO to L5

L5 CHECK THE LVDS (LOW VOLTAGE DIFFERENTIAL SIGNALING) CABLE FOR AN OPEN

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Ignition OFF.
  • Disconnect APIM C2383D .
  • Disconnect Display Unit C2253 .
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383D-1   C2253-4
      C2383D-2   C2253-3
      C2383D-3   C2253-2
      C2383D-4   C2253-1
    C2383D - Shield C2253 - Shield

Are the resistances less than 3 ohms?
Yes GO to L6
No INSTALL a new LVDS cable.
REFER to: Low Voltage Differential Signalling (LVDS) Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

L6 CHECK FOR CORRECT VOLTAGE TO THE DISPLAY UNIT

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Connect APIM C2383D .
  • Ignition ON.
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2253-3   Ground

Is the voltage greater than 11 volts?
Yes INSTALL a new display unit.
REFER to: Front Control/Display Interface Module (FCDIM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No GO to L7

L7 TEMPORARILY REMOVE THE POWER FROM THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION
  • Ignition OFF.
  • Connect Display Unit C2253 .
  • Remove BCM fuse 15 (15A).
  • Wait 1 minute.
  • Install BCM fuse 15 (15A).
  • Ignition ON.
  • Test the system to verify the concern is still present.

Is the concern still present?
Yes GO to L8
No The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the concern may have been caused from a low/high voltage event such as jump starting a vehicle.

L8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST M : THE DISPLAY UNIT (TOUCHSCREEN) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

NOTE: The display unit calibrates after each ignition cycle. Touching the display during an ignition cycle may cause the touchscreen to be inoperative.


Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B108E:01 Display: General Electrical Failure Sets in continuous memory when the APIM detects an error from the display unit.
APIM B108E:02 Display: General Signal Failure Sets in continuous memory when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4B Display: Over Temperature Sets in continuous memory when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:87 Display: Missing Message Sets in continuous memory when the APIM loses communication to the display unit.
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets in continuous memory when the APIM loses communication to the display unit.

Possible Sources

  • Communication concern
  • Configuration concern
  • LVDS cable
  • Display unit
  • APIM
NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.
M1 CHECK FOR A NETWORK CONCERN

NOTE: The display screen is blank if a concern with the HS-CAN3 is present.

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM and the APIM pass the network test?
Yes GO to M2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

M2 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B108E:01, B108E:02, B108E:4B, B108E:87 or U0162:00, GO to M12
For all other Diagnostic Trouble Codes (DTCs), REFER to the APIM DTC Chart in this section.
No GO to M3

M3 CHECK FOR CAN (CONTROLLER AREA NETWORK) COMMUNICATION AND CONFIGURATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Code (CMDTCs).

Are any CAN communication or configuration related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate module DTC Chart in this section.
No GO to M4

M4 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the ACM DTC Chart in this section.
No GO to M5

M5 REBOOT THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION
  • NOTE: In the event the APIM is not receiving the ignition status message, the audio system still powers up when using the SEEK UP and POWER buttons to reboot the APIM. Simultaneously press and hold the SEEK UP and POWER buttons for 10 seconds. As the APIM reboot begins, the touchscreen turns black before the startup sequence begins.
  • After the reboot is complete, operate the system to verify if the concern is still present.

Is the concern still present?
Yes If the touchscreen display is blank or black, GO to M10
If the touchscreen display is not responsive to touch, is locked or frozen, GO to M6
If the touchscreen display is slow to respond to touch, GO to M8
If the image displayed on the touchscreen is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear, GO to M9
For all other concerns with the touchscreen display, GO to M10
No VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern is not duplicated, the system is operating correctly at this time. INSTRUCT the vehicle owner the correct operation of the touchscreen display.

M6 ACCESS THE BEZEL DIAGNOSTICS
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Select the "RGB Pixel Test".

Does the touchscreen enter the "RGB Pixel Test" mode?
Yes GO to M7
No GO to M12

M7 INSPECT THE DISPLAY FOR CRACKS
  • While cycling through one color at a time, carefully inspect the screen for cracks.

Are any cracks present on the display?
Yes
   Click here to access Guided Routine (FDIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No GO to M8

M8 CONFIRM THE TOUCH RESPONSE
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Select the "Touchscreen Activation Test".
  • Touch several points around the display and observe the display touch response. The most recent touch point is indicated by a blue box and prior touch points are indicated by white boxes.

Does the display respond correctly and respond in a timely manner to each touch point?
Yes VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the system is operating correctly at this time. INSTRUCT the vehicle owner in the correct operation of the touchscreen display.
No GO to M14

M9 INSPECT THE TOUCHSCREEN DISPLAY IMAGE CLARITY
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Select the "RGB Pixel Test" and then "Display Test Pattern" while inspecting the display image quality.

Is the image quality concern present when using the "RGB Pixel Test" and "Display Test Pattern" functions?
Yes GO to M14
No The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated.

M10 CHECK IF THE IPC (INSTRUMENT PANEL CLUSTER) POWERS UP
  • Ignition OFF.
  • Ignition ON.

Does the IPC power up when the ignition is cycled on?
Yes GO to M11
No DIAGNOSE the no power in ON condition.
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

M11 CHECK THE APIM (SYNC MODULE) IGNITION KEY INPUT (KEYPOS) PID (PARAMETER IDENTIFICATION)
  • Access the  APIM  and monitor the  KEYPOS (none)  PID


Does the PID indicate Ignition?
Yes GO to M12
No GO to M14

M12 CHECK THE LVDS (LOW VOLTAGE DIFFERENTIAL SIGNALING) CABLE FOR AN OPEN

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Ignition OFF.
  • Disconnect APIM C2383D .
  • Disconnect Display Unit C2253 .
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383D-1   C2253-4
      C2383D-2   C2253-3
      C2383D-3   C2253-2
      C2383D-4   C2253-1
    C2383D - Shield C2253 - Shield

Are the resistances less than 3 ohms?
Yes GO to M13
No INSTALL a new LVDS cable.
REFER to: Low Voltage Differential Signalling (LVDS) Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

M13 CHECK FOR CORRECT VOLTAGE TO THE DISPLAY UNIT

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Connect APIM C2383D .
  • Ignition ON.
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2253-3   Ground

Is the voltage greater than 11 volts?
Yes
   Click here to access Guided Routine (FDIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No GO to M14

M14 TEMPORARILY REMOVE THE POWER FROM THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION
  • Ignition OFF.
  • Remove BCM fuse 15 (15A).
  • Wait 1 minute.
  • Install BCM fuse 15 (15A).
  • Ignition ON.
  • Test the system to verify the concern is still present.

Is the concern still present?
Yes GO to M15
No The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the concern may have been caused from a low/high voltage event such as jump starting a vehicle or a drained battery.

M15 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM and any related in-line connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST N : SOUND FROM THE SYNC SYSTEM (MUSIC/AUDIBLE PROMPTS) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • APIM
  • ACM
N1 CHECK THE OPERATION OF THE SPEAKERS USING THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) MODE
  • Ignition ON.
  • Operate the audio system in AM/ FM mode.
  • Using the audio system fade and balance features, adjust the audio sound to each of the zones (left front, right front, left rear and right rear).

Do all of the speakers operate?
Yes GO to N2
No REFER to the appropriate symptom in the Speakers and Sound Quality Symptom Chart.

N2 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) STEERING WHEEL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • View the following SCCM steering wheel audio/media switch Parameter Identifications (PIDs) while pressing each button:
    • Access the  SCCM  and monitor the  SW_VOICE (none)  PID

    • Access the  SCCM  and monitor the  SW_MODE (none)  PID

    • Access the  SCCM  and monitor the  SW_MUTE (none)  PID


Do the Parameter Identifications (PIDs) correspond correctly?
Yes GO to N3
No GO to Pinpoint Test K

N3 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C4240B .
  • Disconnect APIM C2383 .
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to N4
No REPAIR the circuit in question.

N4 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to N5

N5 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C2383A-4

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C2383A-24

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C2383A-26

Are the resistances greater than 10,000 ohms?
Yes GO to N6
No REPAIR the circuits in question.

N6 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C4240B-19
      C2383A-4   C4240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C4240B-20
      C2383A-24   C4240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C4240B-21
      C2383A-26   C4240B-32

Are the resistances less than 3 ohms?
Yes GO to N7
No REPAIR the circuit in question.

N7 CHECK FOR AN AC (ALTERNATING CURRENT) VOLTAGE SIGNAL FROM THE APIM (SYNC MODULE) OUTPUT CIRCUITS
  • Connect APIM C2383 .
  • Ignition ON.
  • For a concern playing music using the SYNC system, play an audio file through the audio system using a SYNC audio source (Bluetooth or USB port).
  • For a concern with the SYNC audible prompts, repeatedly press the VOICE button on the steering wheel switch while measuring the voltage.
  • NOTE: The ACM C4240A connector must be connected for this test. Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C4240B-19   C4240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C4240B-20   C4240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C4240B-21   C4240B-32

Is a fluctuating AC voltage present?
Yes GO to N9
No GO to N8

N8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

N9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O : VOICE COMMANDS ARE INOPERATIVE OR OUTGOING AUDIO IS NOT TRANSMITTED DURING A PHONE CALL

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1D79:11 Microphone Input: Circuit Short To Ground Sets during the on-demand self-test when the APIM detects a short to ground from the microphone circuitry.
APIM B1D79:12 Microphone Input: Circuit Short To Battery Sets during the on-demand self-test when the APIM detects a short to voltage from the microphone circuitry.
APIM B1D79:13 Microphone Input: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the microphone circuitry.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • Microphone
  • APIM
O1 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) STEERING WHEEL VOICE BUTTON (SW_VOICE) AND STEERING WHEEL MUTE BUTTON (SW_MUTE) PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • View the following SCCM Parameter Identifications (PIDs) while pressing the voice and mute buttons on the steering wheel.
    • Access the  SCCM  and monitor the  SW_VOICE (none)  PID

    • Access the  SCCM  and monitor the  SW_MUTE (none)  PID


Do the Parameter Identifications (PIDs) correspond correctly?
Yes GO to O2
No GO to Pinpoint Test K

O2 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect APIM C2383A .
  • Disconnect Voice Microphone C9045 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C9045-1   Ground
      C9045-2   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to O3
No REPAIR the circuit in question.

O3 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C9045-1   Ground
      C9045-2   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to O4

O4 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TOGETHER
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C9045-1   C9045-2

Is the resistance greater than 10,000 ohms?
Yes GO to O5
No REPAIR the circuits.

O5 CHECK THE MICROPHONE CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C9045-1   C2383A-12
      C9045-2   C2383A-13

Are the resistances less than 3 ohms?
Yes GO to O6
No REPAIR the circuit in question.

O6 CHECK THE MICROPHONE
  • Connect APIM C2383A .
  • INSTALL a new voice microphone.
    REFER to: Voice Microphone (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Test the microphone operation by checking the outgoing call audio with a test phone.

Does the outgoing call audio operate correctly?
Yes The repair is complete. The concern was cause by the voice microphone.
No GO to O7

O7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST P : USB (UNIVERSAL SERIAL BUS) INPUT CONCERN - VEHICLES EQUIPPED WITH A NON-TOUCHSCREEN DISPLAY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1252:11 USB Port: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the APIM detects a short to ground from the USB cable.
APIM B1252:13 USB Port: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the USB cable.

Possible Sources

  • USB device
  • Foreign object in the USB port
  • USB cable
  • APIM
P1 CHECK FOR FOREIGN MATERIAL IN THE USB (UNIVERSAL SERIAL BUS) PORT
  • Ignition OFF.
  • Remove any devices connected to the USB port.
  • Inspect the USB port for foreign material.

Is any foreign material present in the USB port?
Yes REMOVE the foreign material present in the USB port.
No GO to P2

P2 CHECK THE USB (UNIVERSAL SERIAL BUS) INPUT
  • Ignition ON.
  • Connect the MIT 105-00120 to the USB port.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?
Yes The system is operating correctly. The concern is with the USB device.
No GO to P3

P3 BYPASS THE USB (UNIVERSAL SERIAL BUS) CABLE
  • Ignition OFF.
  • Obtain a new USB cable.
  • Connect one end of the new USB cable to the APIM C2383B.
  • Connect the MIT 105-00120 to the new USB port.
  • Ignition ON.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?
Yes INSTALL the new USB cable.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No GO to P4

P4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q : USB (UNIVERSAL SERIAL BUS) INPUT CONCERN - VEHICLES EQUIPPED WITH A TOUCHSCREEN DISPLAY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1252:11 USB Port: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the APIM detects a short to ground from the USB cable.
APIM B1252:13 USB Port: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the USB cable.
APIM B14FD:11 External Media Control Connectivity: Circuit Short To Ground Sets in continuous memory when the APIM detects a short to ground from the USB hub power supply circuit.

Possible Sources

  • USB device
  • Foreign object in the USB port
  • USB cable
  • Media hub
  • APIM
Q1 CHECK FOR FOREIGN MATERIAL IN THE USB (UNIVERSAL SERIAL BUS) PORTS
  • Ignition OFF.
  • Remove any devices connected to the USB ports.
  • Inspect the USB ports for foreign material.

Is any foreign material present in either USB port?
Yes REMOVE the foreign material present in the USB port.
No GO to Q2

Q2 CHECK THE OPERATION FROM BOTH USB (UNIVERSAL SERIAL BUS) PORTS
  • Obtain a USB Type A Female-to-USB Type C Male adapter to check the USB-C connection in the media hub.
  • Ignition ON.
  • Connect the MIT 105-00120 to one USB port.
  • Using the MIT 105-00120, attempt to play an audio file.
  • Connect the MIT 105-00120 to the other USB port.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK for both USB ports?
Yes The system is operating correctly. The concern is with the suspect USB device.
No If the audio output is inoperative for only one USB port, INSTALL a new media hub.
REFER to: Media Hub (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). If the audio output is inoperative for both USB ports, GO to Q3

Q3 CHECK FOR SHORT TO GROUND DTC (DIAGNOSTIC TROUBLE CODE) B1252:11 AND B14FD:11
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 or B14FD:11 present?
Yes GO to Q4
No GO to Q9

Q4 ISOLATE THE MEDIA HUB
  • Ignition OFF.
  • Disconnect Media Hub C3512A and C3512B .
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Wait 30 seconds.
  • NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 or B14FD:11 still present?
Yes For DTC B1252:11, GO to Q5
For DTC B14FD:11, GO to Q7
No INSTALL a new media hub.
REFER to: Media Hub (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

Q5 ISOLATE THE REAR USB (UNIVERSAL SERIAL BUS) CABLE FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the rear USB cable from the front USB cable.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Wait 30 seconds.
  • NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 still present?
Yes GO to Q5
No INSTALL a new rear USB cable.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

Q6 ISOLATE THE FRONT USB (UNIVERSAL SERIAL BUS) CABLE FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect APIM C2383B .
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Wait 30 seconds.
  • NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 still present?
Yes GO to Q15
No INSTALL a new front USB cable.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

Q7 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect APIM C2383A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-8   Ground
      C2383A-38   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to Q8
No REPAIR the circuit in question.

Q8 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO EACH OTHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-8   C2383A-38

Is the resistance greater than 10,000 ohms?
Yes GO to Q15
No REPAIR the circuits.

Q9 CHECK FOR POWER TO THE MEDIA HUB
  • Ignition OFF.
  • Disconnect Media Hub C3512A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3512A-1   C3512A-4

Is the voltage greater than 11 volts?
Yes GO to Q12
No GO to Q10

Q10 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect APIM C2383A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3512A-1   Ground
      C3512A-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to Q11

Q11 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3512A-1   C2383A-8
      C3512A-4   C2383A-38

Are the resistances less than 3 ohms?
Yes GO to Q15
No REPAIR the circuit in question.

Q12 BYPASS THE MEDIA HUB
  • Ignition OFF.
  • Disconnect Media Hub C3512B .
  • Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the media hub C3512B.
  • Ignition ON.
  • Connect the MIT 105-00120 to the USB adaptor.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?
Yes INSTALL a new media hub.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No GO to Q13

Q13 BYPASS THE REAR USB (UNIVERSAL SERIAL BUS) CABLE
  • Ignition OFF.
  • Disconnect the USB cable in-line connection located under the floor console.
  • Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the front USB cable.
  • Connect the MIT 105-00120 to the USB adaptor.
  • Ignition ON.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?
Yes INSTALL a new rear USB cable.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No GO to Q14

Q14 BYPASS THE FRONT USB (UNIVERSAL SERIAL BUS) CABLE
  • Ignition OFF.
  • Obtain a new front USB cable.
  • Connect one end of the new front USB cable to the APIM C2383B.
  • Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the other end of the new front USB cable.
  • Connect the MIT 105-00120 to the USB adaptor.
  • Ignition ON.
  • Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?
Yes INSTALL the new front USB cable.
REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No GO to Q15

Q15 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM and any related in-line connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST R : UNABLE TO PAIR BLUETOOTH DEVICE OR THE BLUETOOTH FUNCTIONALITY IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

Possible Sources

  • Customer error
  • Incompatible Bluetooth device
  • Bluetooth device
  • APIM
NOTE: If an individual Bluetooth device is able to pair with the SYNC system, there are no concerns with the APIM.
R1 CHECK THE APIM (SYNC MODULE) BLUETOOTH PAIRING CAPABILITY
  • Ignition ON.
  • Connect one of the following to a USB port:
    • A MIT 420-373 (or Rotunda part number 105-00120-GEN2) or equivalent verification tool.
    • Compatible Bluetooth Device (only if the MIT (or equivalent verification tool) is not available). Refer to the appropriate Ford website to view a list of compatible devices and features.
  • With the MIT (equivalent verification tool) or compatible Bluetooth device in Bluetooth mode, pair it with the APIM. Follow the device instructions for Bluetooth pairing.
  • View the following APIM Parameter Identifications (PIDs):
    • Access the  APIM  and monitor the  BT_PAIR (none)  PID

    • Access the  APIM  and monitor the  BT_CONN (none)  PID


Do the Parameter Identifications (PIDs) both read "Yes"?
Yes REFER to the appropriate Ford website to view a list of compatible devices, features and other possible conditions for the cause of the concern.
No GO to R2

R2 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST S : THE 911 ASSIST OR EMERGENCY ASSISTANCE NOT OPERATIONAL MESSAGE DISPLAYS

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

If a fault message appears indicating the 911 Assist or emergency assistance is not operational, the concern may be caused due to modules not communicating or incorrect APIM procedures.

Possible Sources

  • 911 Assist or emergency assistance feature disabled
  • Network communication concern
  • Module configuration concern
  • APIM
S1 VERIFY THE 911 ASSIST OR EMERGENCY ASSISTANCE FEATURE IS ENABLED
  • Ignition ON.
  • Check the 911 Assist or emergency assistance feature setting in the display settings menu.

Is the 911 Assist or emergency assistance setting enabled?
Yes GO to S2
No ENABLE the 911 Assist or emergency assistance feature.

S2 CHECK FOR CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Continuous Memory Diagnostic Trouble Codes (CMDTCs) present?
Yes REFER to the appropriate module DTC Chart in the appropriate section.
No GO to S3

S3 CHECK THE VEHICLE SERVICE HISTORY
  • Check the vehicle service history for recent service actions related to the RCM and the APIM.

Is any recent service action noted with the RCM or the APIM noted?
Yes CARRY OUT the PMI procedure using As-Built data as directed by the diagnostic scan tool for the module in question.
No GO to S4

S4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM and any related in-line connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST T : THE COMPASS/NAVIGATION IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B119F:01 GPS Antenna: General Electrical Failure Sets in continuous memory when the APIM detects a short to ground or short to voltage from the GPS antenna cable.
APIM B119F:13 GPS Antenna: Circuit Open Sets in continuous memory when the APIM detects an open from the GPS antenna cable.

Possible Sources

  • Corrosion
  • Network communication concern
  • Obstructions in the GPS antenna line of sight to the satellite
  • GPS antenna cable
  • Roof mounted antenna
  • ACM
  • APIM
NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.
NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some compass/navigation concerns.
T1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE NETWORK COMMUNICATION
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U0121:00 present?
Yes GO to Pinpoint Test AD
No GO to T2

T2 CHECK THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA RECEPTION
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Select "Location Information".
  • NOTE: If the value reads less than 3 for "Number of Satellites" or "No GPS Fix" for "Fix Mode", drive the vehicle to an outdoor location free from obstacles such as tall buildings and large trees. Monitor the "Number of Satellites" and "Fix Mode".

Are 3 or more satellites displayed for "Number of Satellites" and is "3D fix obtained" displayed for "fix Mode"?
Yes GO to T3
No GO to T4

T3 CHECK COMPASS FOR CORRECT OPERATION
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The system is operating correctly at this time. The concern may have been caused by obstructions in the antenna line of sight to the satellites for an extended period of time.
No GO to T13

T4 CHECK FOR CORRECT APIM (SYNC MODULE) OUTPUT VOLTAGE AT THE GPS (GLOBAL POSITIONING SYSTEM) CABLE CONNECTION
  • Ignition OFF.
  • Disconnect GPS antenna cable from the APIM .
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    GPS cable core at the APIM (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes For vehicles not equipped with a satellite radio, GO to T9
For vehicles equipped with a satellite radio, GO to T5
No GO to T13

T5 CHECK FOR PREVIEW CHANNEL 1
  • Operate the audio system in satellite radio mode.
  • Select channel 1.

Does the satellite radio system receive channel 1 with normal sound quality?
Yes GO to T10
No GO to T6

T6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable at the ACM .
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite cable core (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to T7
No GO to T12

T7 CHECK FOR VOLTAGE TO THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable at the ACM .
  • Disconnect the GPS/satellite radio antenna cable from the satellite radio antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS/satellite radio antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to T8
No IDENTIFY the cable with the open or short. INSTALL a new GPS/satellite radio cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

T8 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE
  • INSTALL a new satellite radio/GPS antenna splitter cable.
    REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The repair is complete. The concern was caused by the original satellite radio/GPS antenna splitter cable.
No GO to T10

T9 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Disconnect the GPS antenna cable from the GPS antenna.
  • Connect the GPS antenna cable to the APIM .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS/satellite radio antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to T10
No IDENTIFY the cable with the open or short. INSTALL a new GPS/satellite radio cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

T10 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the antenna.
    REFER to: Roof Mounted Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Inspect for corrosion on the antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?
Yes GO to T11
No REPAIR any corrosion on the antenna base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

T11 CHECK THE ROOF MOUNTED ANTENNA
  • Install a new roof mounted antenna.
    REFER to: Roof Mounted Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
  • Test the system for normal operation.

Does the compass operate correctly?
Yes The repair is complete. The concern was caused by the roof mounted antenna.
No GO to T13

T12 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

T13 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM and any related in-line connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U : THE DEEP SLEEP MODE ACTIVATED NOTIFICATION IS RECEIVED ON THE FORDPASS APP

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

The TCU turns off when vehicle battery voltage falls below the minimum required or the vehicle is inactive beyond a designated time limit to preserve battery power. The TCU remains off until the next engine running event . The connected mobile device App reports a deep sleep mode when notifications are turned on.

Possible Sources

  • Battery drain concern
  • Charging system concern
  • Starting system concern
U1 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging system related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the charging system. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to U2

U2 CHECK FOR A BATTERY DRAIN CONDITION
  • Ignition OFF.
  • Carry out the battery drain check. Refer to the Battery Drain Check in section 414-01.

Is an excessive battery drain present?
Yes CORRECT the excessive battery drain condition.
No GO to U3

U3 CONFIRM A SLOW OR NO CRANK WHILE STARTING
  • Check with the vehicle owner the recent history of the vehicle.
  • Observe the starting system while starting the engine.

Is a slow or no crank condition noted in recent history by the vehicle owner or does the vehicle currently exhibit a slow or no crank condition?
Yes DIAGNOSE the slow or no crank condition. REFER to the appropriate Diagnosis and Testing in section 303-06
No The system is operating correctly. The concern may have been caused by unique operating conditions or a prolonged loss of TCU cellular reception.

PINPOINT TEST V : THE SYNC CONNECT FEATURE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

TCU Coaxial Cable Connections


Item Part Number Description
1 TCU antenna connection
2 Cellular antenna connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1246:11 GSM (Group System for Mobile) Antenna: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the cellular antenna cable to the satellite antenna for more than 5 seconds.
TCU B1246:13 GSM (Group System for Mobile) Antenna: Circuit Open Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the cellular antenna cable to the satellite antenna for more than 5 seconds.

Possible Sources

  • Outdated FordPass mobile application software version/level
  • Poor TCU reception
  • Cellular device
  • Wiring, terminals, or connectors
  • Cellular antenna cable
  • Roof mounted antenna
  • TCU

Visual Inspection and Pre-checks

  • Check the following with the vehicle owner:
  • The FordPass mobile application software version level matches the latest software version level available.
  • The device is logged into the FordPass mobile application with the login created from the application or with the Ford Owner account login that corresponds with the vehicle.
  • The vehicle is added to the FordPass mobile application.
  • SYNC Connect has been fully activated by authorizing the vehicle within the FordPass mobile application.
  • The vehicle is within cell phone tower range. Refer to the coverage map at mobile data service provider website.
  • Check the operation of the FordPass mobile applications for correct operation.
NOTE: This pinpoint test presumes the Diagnostic Pre-Checks have been completed.
V1 CHECK FOR CORRECT VEHICLE OPERATION
  • Verify the SYNC Connect function in question operates correctly on the vehicle, independent of the FordPass mobile application. For example, if the SYNC Connect door lock/unlock function is inoperative, check the operation of the door locks using the door lock control switch or IKT/passive key.

Does the base function in question operate when tested on the vehicle?
Yes GO to V2
No REFER to the appropriate section in the Workshop Manual to diagnose the inoperative function.

V2 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to V3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

V3 CHECK FOR LOST COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait at least 10 seconds.
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any lost communication Diagnostic Trouble Codes (DTCs) set in any audio system module?
Yes REFER to the appropriate DTC Chart in this section.
No GO to V4

V4 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA CABLE FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect cellular antenna cable from the TCU .
  • Disconnect cellular antenna cable from the roof mounted antenna.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Cellular antenna cable core at the TCU   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to V4
No GO to V6

V5 CHECK FPR VOLTAGE TO THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA
  • Ignition OFF.
  • Connect the primary cellular antenna cable to the TCU .
  • Disconnect primary cellular antenna cable from the GPS/satellite radio antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Priamry cellular antenna cable core at the GPS/satellite radio antenna, cavity 2   Ground

Is the voltage approximately 1.8 volts?
Yes INSTALL a new roof mounted antenna.
REFER to: Roof Mounted Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to V6
No INSTALL a new cellular antenna cable.
REFER to: Cellular Antenna Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

V6 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST W : THE VEHICLE WI-FI HOTSPOT FEATURE IS INOPERATIVE, EXPERIENCING POOR DATA SPEED OR CANNOT STREAM ANY DATA

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

TCU Coaxial Cable Connections


Item Part Number Description
1 TCU antenna connection
2 Cellular antenna connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1D55:11 Antenna #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the TCU antenna cable for more than 5 seconds.
TCU B1D55:13 Antenna #2: Circuit Open Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the TCU antenna cable for more than 5 seconds.

Possible Sources

  • FordPass concern
  • Poor TCU reception
  • Wi-Fi connected device
  • Wiring, terminals, or connectors
  • TCU antenna
  • TCU antenna cable
  • TCU
W1 CHECK FOR CORRECT SYNC CONNECT OPERATION
  • Verify the SYNC Connect function operates correctly. For example, check the operation of the door locks using the SYNC Connect feature.

Does the SYNC Connect feature operate?
Yes GO to W2
No GO to Pinpoint Test V

W2 COMPARE THE WI-FI SPEED TO A SECOND DEVICE
  • Park the vehicle away from buildings with a clear view of the sky.
  • Establish a vehicle Wi-Fi Hotspot connection.
  • Use a laptop (or equivalent device), connect to the vehicle Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Disconnect the laptop (or equivalent device) from the vehicle Wi-Fi Hotspot
  • Establish a Wi-Fi connection using a cell phone (or equivalent device) using the cellular network.
  • Use the laptop (or equivalent device) to connect to the new Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Compare the data speed from the vehicle Wi-Fi Hotspot to the second device supporting a Wi-Fi hotspot.

Is the data speed of the vehicle 50% or less than the second device?
Yes GO to W3
No The system is operating as designed. The concern may have been caused by environmental conditions or obstruction to the signal.

W3 CHECK FOR TCU (TELEMATIC CONTROL UNIT MODULE) SECONDARY CELLULAR ANTENNA VOLTAGE OUTPUT
  • Ignition OFF.
  • Disconnect the secondary cellular (TCU) antenna cable from the TCU .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the TCU. Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Secondary cellular (TCU) antenna cable core at the TCU (component side)   Ground

Is the voltage approximately 1.8 volts?
Yes GO to W4
No GO to W5

W4 CHECK FOR VOLTAGE TO THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA
  • Ignition OFF.
  • Connect the secondary cellular (TCU) antenna cable to the TCU .
  • Disconnect secondary cellular (TCU) antenna cable from the TCU antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    TCU antenna cable core at the TCU antenna   Ground

Is the voltage approximately 1.8 volts?
Yes INSTALL a new TCU antenna.
REFER to: Telematics Control Unit (TCU) Module Antenna (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to W5
No INSTALL a new TCU antenna cable.
REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

W5 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST X : SYNC APPLINK CONCERN - NON-TOUCHSCREEN

Normal Operation and Fault Conditions

  • NOTE: AppLink does not operate if Android Auto™ and Apple CarPlay™ are enabled.

    It is normal for incompatible mobile device platforms, applications, and application versions to be unavailable through SYNC AppLink.
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth only, GO to Pinpoint Test R
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth and the USB port, GO to Pinpoint Test P

Possible Sources

  • Refer to the pinpoint test
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST Y : SYNC APPLINK CONCERN - TOUCHSCREEN

Normal Operation and Fault Conditions

  • NOTE: AppLink does not operate if Android Auto™ and Apple CarPlay™ are enabled.

    It is normal for incompatible mobile device platforms, applications, and application versions to be unavailable through SYNC AppLink.
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth only, GO to Pinpoint Test R
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth and the USB port, GO to Pinpoint Test Q

Possible Sources

  • Refer to the pinpoint test
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST Z : ANDROID AUTO™ OR APPLE CARPLAY™ CONCERN

Normal Operation and Fault Conditions

  • NOTE: Make sure the operating system of the device and the SYNC system are current.

    CHECK the operation of the USB port by using a known good USB device to play audio files.
    • If the SYNC system does not recognize the USB device, GO to Pinpoint Test Q
    • If the SYNC system recognizes the USB device, refer to the Android Auto™ or Apple CarPlay™ information in the Owner Literature.

Possible Sources

  • Refer to the pinpoint test
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST AA : OTHER VEHICLE WI-FI HOTSPOT CONCERN

Normal Operation and Fault Conditions

The SYNC system is unable to discover or log onto an unsecure Wi-Fi connection

  • INSTRUCT the vehicle owner to refer to the SYNC Troubleshooting section of the Owner Literature.

The SYNC Wi-Fi connection does not operate correctly

  • INSTRUCT the vehicle owner to refer to "Wi-Fi Issues" in the SYNC Troubleshooting section of the Owner Literature.

A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot

  • TURN ON the Wi-Fi Hotspot or visibility feature.

A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot

  • NOTE: Passwords may contain a lowercase "L" or a capital "i" They look identical and the wrong character may have been entered.

    OBTAIN the correct password to log onto the Wi-Fi connection. Refer to the Owner Literature and/or the appropriate technical training information.

Possible Sources

  • FordPass concern
  • Wi-Fi Hotspot or visibility is turned off
  • SSID and password set to factory defaults
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST AB : ANC (ACTIVE NOISE CONTROL) -RELATED DTC (DIAGNOSTIC TROUBLE CODE) CONCERN

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B116A:01 Handset Microphone: General Electrical Failure Sets in continuous memory when the ACM detects the left front ANC microphone circuits are shorted together.
ACM B116A:12 Handset Microphone: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front ANC microphone circuitry.
ACM B116A:14 Handset Microphone: Circuit Short To Ground Or Open Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the left front ANC microphone circuitry.
ACM B117A:01 Backup Microphone: General Electrical Failure Sets in continuous memory when the ACM detects the right front ANC microphone circuits are shorted together.
ACM B117A:12 Backup Microphone: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front ANC microphone circuitry.
ACM B117A:14 Backup Microphone: Circuit Short To Ground Or Open Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the right front ANC microphone circuitry.
ACM B13F5:01 Microphone 3: General Electrical Failure Sets in continuous memory when the ACM detects the rear ANC microphone circuits are shorted together.
ACM B13F5:12 Microphone 3: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the rear ANC microphone circuitry.
ACM B13F5:14 Microphone 3: Circuit Short To Ground Or Open Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the rear ANC microphone circuitry.

Possible Sources

  • Wiring, terminals, or connectors
  • ANC microphone
  • ACM

Visual Inspection and Pre-checks

  • Make sure no modifications have been made to the audio system.
  • Inspect the speaker areas for items that may be blocking the speaker sound output.
NOTE: The ANC system is not compatible with aftermarket audio system components and architectures not approved by Ford.
AB1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any ACM speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the speaker Diagnostic Trouble Codes (DTCs) first. REFER to the ACM DTC Chart in this section.
No GO to AB2

AB2 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any DSP speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the speaker-related Diagnostic Trouble Codes (DTCs) first. REFER to the DSP DTC Chart in this section.
No GO to AB3

AB3 INSPECT THE ANC (ACTIVE NOISE CONTROL) MICROPHONES
  • Inspect each ANC microphone and make sure it is correctly installed into the mounting bezel.

Are the ANC microphones installed correctly?
Yes GO to AB4
No Correctly INSTALL the ANC microphone in question.
REFER to: Active Noise Control Microphone (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).

AB4 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect ANC microphone. NOTE: Use the Fault Trigger Conditions table at the beginning of this test to identify the suspect microphone.
  • Disconnect ACM C4240B .
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9222-1   Ground
      C9222-2   Ground

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9229-1   Ground
      C9229-2   Ground

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   Ground
      C9225-2   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to AB5
No REPAIR the circuit in question.

AB5 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9222-1   Ground
      C9222-2   Ground

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9229-1   Ground
      C9229-2   Ground

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   Ground
      C9225-2   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to AB6

AB6 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9222-1   C9222-2

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9229-1   C9229-2

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   C9225-2

Is the resistance greater than 10,000 ohms?
Yes GO to AB7
No REPAIR the circuits.

AB7 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9222-1   C4240B-15
      C9222-2   C4240B-26

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9229-1   C4240B-16
      C9229-2   C4240B-27

    Click to display connectors

      Center ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   C4240B-17
      C9225-2   C4240B-28

Are the resistances less than 3 ohms?
Yes INSTALL a new ANC microphone in question.
REFER to: Active Noise Control Microphone (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to AB8
No REPAIR the circuit in question.

AB8 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC : U0100:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM and the TCU communicate with the PCM over the CAN. If messages are missing or not received from the PCM module, features such as the speed compensated volume can be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0100:00 Lost Communication With ECM/PCM "A": No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the PCM for more than 5 seconds.
APIM U0100:00 Lost Communication With ECM/PCM "A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the PCM for more than 5 seconds.
TCU U0100:00 Lost Communication With ECM/PCM "A": No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the PCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • TCU concern
  • PCM
AC1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AC2
No The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE)
  • Connect the diagnostic scan tool to the vehicle.
  • Attempt to establish a vehicle session using the diagnostic scan tool.

Can a vehicle session be established?
Yes GO to AC3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AC3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AC4

AC4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Diagnosis and Testing in the appropriate 303-14 section.
No GO to AC5

AC5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, TCU) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, TCU) setting the DTC.

Is DTC U0100:00 still present?
Yes GO to AC6
No The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

AC6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the PCM and the module in question ( ACM, APIM, TCU) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AC7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AC7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the PCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD : U0121:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The ACM and the APIM communicate with the ABS module over the CAN. If messages are missing or not received from the ABS module, the GPS feature may not be accurate.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the ABS module for more than 5 seconds.
APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the ABS module for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • ABS module
AD1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AD2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ABS module pass the network test?
Yes GO to AD3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AD3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AD4

AD4 CHECK FOR NON-NETWORK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).
No GO to AD5

AD5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0121:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Is DTC U0121:00 still present?
Yes GO to AD6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ABS module and the module in question ( ACM, APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AD7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AD7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ABS module connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ABS module connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ABS module.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE : U0140:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM, the DSP and the TCU communicate with the BCM over the CAN. If messages are missing or not received from the BCM, the display screen brightness may not operate not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the BCM for more than 5 seconds.
APIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the BCM for more than 5 seconds.
DSP U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the BCM for more than 5 seconds.
TCU U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the BCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • DSP concern
  • TCU concern
  • BCM
AE1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AE2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?
Yes GO to AE3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AE3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AE4

AE4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to AE5

AE5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP, TCU) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, TCU) setting the DTC.

Is DTC U0140:00 still present?
Yes GO to AE6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the BCM and the module in question ( ACM, APIM, DSP, TCU) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AE7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AE7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the BCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF : U0151:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the RCM over the CAN. If messages are missing or not received from the RCM, features such as the 911 Assist or Emergency Assist or the passenger airbag disable indicator may be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information Sets in continuous memory when the APIM detects messages from the RCM are missing for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • RCM
AF1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AF2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the RCM pass the network test?
Yes GO to AF3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AF3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AF4

AF4 CHECK FOR NON-NETWORK RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the RCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to AF5

AF5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0151:00 still present?
Yes GO to AF6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the RCM and the module in question ( APIM setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AF7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AF7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RCM and any related in-line connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the RCM and any related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AG : U0155:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM and the DSP communicate with the IPC over the CAN. If messages are missing or not received from the IPC, features such as the display illumination or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the IPC for more than 5 seconds.
APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the IPC for more than 5 seconds.
DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the IPC for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • DSP concern
  • IPC
AG1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AG2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPC pass the network test?
Yes GO to AG3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AG3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AG4

AG4 CHECK FOR NON-NETWORK IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to AG5

AG5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP) setting the DTC.

Is DTC U0155:00 still present?
Yes GO to AG6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the IPC and the module in question ( ACM, APIM, DSP) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AG7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AG7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPC connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPC connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (IPC). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AH : U0159:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the PAM over the CAN. If messages are missing or not received from the PAM, features such as the parking aid may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0159:00 Lost Communication With Parking Assist Control Module "A": No Sub Type Information Set in continuous memory when the APIM detects network messages are missing from the PAM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • BCM (with integrated PAM)
AH1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AH2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the PAM pass the network test?
Yes GO to AH3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AH3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AH4

AH4 CHECK FOR NON-NETWORK PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Parking Aid (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Diagnosis and Testing).
No GO to AH5

AH5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0159:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0159:00 still present?
Yes GO to AH6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the PAM, the BCM and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AH7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AH7 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the BCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
   Click here to access Guided Routine (BCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AI : U0184:00 (APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The APIM and the DSP communicate with the ACM over the CAN. If messages are missing or not received from the ACM, the touchscreen display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0184:00 Lost Communication With Radio: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the ACM for more than 5 seconds.
DSP U0184:00 Lost Communication With Radio: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the ACM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • DSP concern
  • ACM
AI1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AI2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to AI3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AI3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, DSP) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AI4

AI4 CHECK FOR NON-NETWORK ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the ACM DTC Chart in this section.
No GO to AI5

AI5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0184:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM, DSP) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, DSP) setting the DTC.

Is DTC U0184:00 still present?
Yes GO to AI6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ACM and the module in question ( APIM, DSP) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AI7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AI7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AJ : U0198:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the TCU over the CAN. If messages are missing or not received from the TCU, the SYNC Connect feature may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0198:00 Lost Communication With Telematic Control Module "A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the TCU for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • TCU
AJ1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AJ2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to AJ3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AJ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AJ4

AJ4 CHECK FOR NON-NETWORK TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the TCU self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the TCU DTC Chart in this section.
No GO to AJ5

AJ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0198:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (APIM) in question setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0198:00 still present?
Yes GO to AJ6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the TCU and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AJ7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AJ7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AK : U0208:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCME over the CAN. If messages are missing or not received from the SCME, the climate controlled seat may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0208:00 Lost Communication With "Seat Control Module A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SCME for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • SCME
AK1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AK2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SCME pass the network test?
Yes GO to AK3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AK3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AK4

AK4 CHECK FOR NON-NETWORK SCME (FRONT SEAT CLIMATE CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SCME self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Front Seats (501-10 Front Seats - SYNC 3) .
No GO to AK5

AK5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0208:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (APIM) in question setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0208:00 still present?
Yes GO to AK6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SCME and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AK7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AK7 CHECK FOR CORRECT SCME (FRONT SEAT CLIMATE CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCME connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SCME connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCME.
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AL : U020C:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the WACM over the CAN. If messages are missing or not received from the WACM, the wireless charging feature may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U020C:00 Lost Communication with Wireless Accessory Charging Module "A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the WACM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • WACM
AL1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AL2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the WACM pass the network test?
Yes GO to AL3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AL3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AL4

AL4 CHECK FOR NON-NETWORK WACM (WIRELESS ACCESSORY CHARGING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the WACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Diagnosis and Testing).
No GO to AL5

AL5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U020C:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question setting the DTC.

Is DTC U020C:00 still present?
Yes GO to AL6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the WACM and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AL7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AL7 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the WACM connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the WACM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new WACM.
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AM : U0232:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SODL over the CAN. If messages are missing or not received from the SODL, features such as the side detection settings or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module "A": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SODL for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • SODL
AM1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AM2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AM2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SODL pass the network test?
Yes GO to AM3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AM3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AM4

AM4 CHECK FOR NON-NETWORK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SODL self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).
No GO to AM5

AM5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0232:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0232:00 still present?
Yes GO to AM6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AM6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SODL and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AM7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AM7 CHECK FOR CORRECT SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODL connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODL.
REFER to: Side Obstacle Detection Control Module (419-04 Side and Rear Vision, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AN : U0233:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SODR over the CAN. If messages are missing or not received from the SODR, features such as the side detection settings or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module "B": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SODR for more than 5 seconds when the ignition is on.

Possible Sources

  • Network communication concern
  • APIM concern
  • SODR
AN1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AN2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AN2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SODR pass the network test?
Yes GO to AN3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AN3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AN4

AN4 CHECK FOR NON-NETWORK SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SODR self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).
No GO to AN5

AN5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0233:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0233:00 still present?
Yes GO to AN6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AN6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SODR and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AN7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AN7 CHECK FOR CORRECT SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODR connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODR.
REFER to: Side Obstacle Detection Control Module (419-04 Side and Rear Vision, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AO : U0238:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The ACM and the APIM communicate with the audio DSP module over the CAN. If messages are missing or not received from the DSP, features such as the ANC may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0238:00 Lost Communication With Digital Audio Control Module "D": No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the DSP for more than 5 seconds.
APIM U0238:00 Lost Communication With Digital Audio Control Module "D": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the DSP for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • DSP
AO1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AO2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AO2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the DSP pass the network test?
Yes GO to AO3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AO3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AO4

AO4 CHECK FOR NON-NETWORK DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DSP DTC Chart in this section.
No GO to AO5

AO5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0238:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Is DTC U0238:00 still present?
Yes GO to AO6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AO6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the audio DSP module and the module in question ( ACM, APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AO7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AO7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AP : U023B:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the IPMB over the CAN. If messages are missing or not received from the IPMB, features such as the parking aid may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U023B:00 Lost Communication With Image Processing Module B: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the IPMB for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • IPMB
AP1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AP2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AP2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPMB pass the network test?
Yes GO to AP3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AP3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AP4

AP4 CHECK FOR NON-NETWORK IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the IPMB self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Parking Aid (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Diagnosis and Testing).
No GO to AP5

AP5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U023B:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U023B:00 still present?
Yes GO to AP6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AP6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the IPMB and the module in question setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AP7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AP7 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPMB connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPMB connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AQ : U024B:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCMG over the CAN. If messages are missing or not received from the SCMG, the multi-contour seats functions may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U024B:00 Lost Communication with Seat Control Module "G": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SCMG for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • SCMG
AQ1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AQ2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AQ2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPMB pass the network test?
Yes GO to AQ3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AQ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AQ4

AQ4 CHECK FOR NON-NETWORK SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SCMG self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Front Seats (501-10 Front Seats - SYNC 3) .
No GO to AQ5

AQ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U024B:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U024B:00 still present?
Yes GO to AQ6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AQ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SCMG and the module in question setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AQ7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AQ7 CHECK FOR CORRECT SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCMG connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SCMG connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMG.
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AR : U024C:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCMH over the CAN. If messages are missing or not received from the SCMH, the multi-contour seats functions may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U024C:00 Lost Communication with Seat Control Module "H": No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SCMH for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • SCMH
AR1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AR2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AR2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPMB pass the network test?
Yes GO to AR3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AR3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AR4

AR4 CHECK FOR NON-NETWORK SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SCMH self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Front Seats (501-10 Front Seats - SYNC 3) .
No GO to AR5

AR5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U024C:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U024C:00 still present?
Yes GO to AR6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AR6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SCMG and the module in question setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AR7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AR7 CHECK FOR CORRECT SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCMH connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SCMH connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMH.
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AS : U0253:00 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the DSP and the TCU communicate with the APIM over the CAN. If messages are missing or not received from the APIM, the display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the APIM for more than 5 seconds.
DSP U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the APIM for more than 5 seconds.
TCU U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the APIM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • TCU concern
  • APIM
AS1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AS2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the APIM pass the network test?
Yes GO to AS3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AS3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, DSP, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AS4

AS4 CHECK FOR NON-NETWORK APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the APIM DTC Chart in this section.
No GO to AS5

AS5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, DSP, TCU) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, DSP, TCU) setting the DTC.

Is DTC U0253:00 still present?
Yes GO to AS6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the APIM and the module in question ( ACM, DSP, TCU) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AS7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AS7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AT : U0293:00 (APIM (SYNC MODULE) , )

Normal Operation and Fault Conditions

The APIM communicates with the SOBDMC over the CAN. If messages are missing or not received from the SOBDMC, the high voltage battery information may not display.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0293:00 Lost Communication with Hybrid/EV Powertrain Control Module: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SOBDMC for more than 5 seconds.

Possible Sources

  • Network communication concern
  • APIM concern
  • SOBDMC
AT1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AT2
No CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AT2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SOBDMC pass the network test?
Yes GO to AT3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AT3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to AT4

AT4 CHECK FOR NON-NETWORK SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SOBDMC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: High Voltage Battery, Mounting and Cables (414-03 High Voltage Battery, Mounting and Cables, Diagnosis and Testing).
No GO to AT5

AT5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0293:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0293:00 still present?
Yes GO to AT6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AT6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SOBDMC and the module in question ( APIM) setting the DTC. If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AT7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AT7 CHECK FOR CORRECT SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SOBDMC connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SOBDMC. REFER to the TCM Removal and Installation procedure in the appropriate 307-01 section.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AU : U3003:16 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it falls below a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage below 10 volts.
APIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage below 10 volts.
DSP U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage below 10 volts.
TCU U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage below 10 volts.

Possible Sources

  • Previous low battery voltage
  • Wiring, terminals, or connectors
  • Charging system concern
  • ACM
  • APIM
  • DSP
  • TCU
AU1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question setting the low voltage DTC.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question setting the low voltage DTC.

Is DTC U3003:16 still present?
Yes GO to AU2
No The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

AU2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the charging system concern. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AU3

AU3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
  • Ignition OFF.
  • Check the battery condition and verify the battery is fully charged.
    REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?
Yes GO to AU4
No DIAGNOSE the battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

AU4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, monitor the voltage supply PID:
    • ACM:

      Access the  ACM  and monitor the  VPWR (V)  PID

    • APIM:

      Access the  APIM  and monitor the  VPWR (V)  PID

    • DSP:

      Access the  DSP  and monitor the  VPWR (V)  PID

    • TCU:

      Access the  TCU  and monitor the  VPWR (V)  PID

      VPWR_TCU (Module supply voltage)

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM, GO to AU7
For the APIM, GO to AU8
For the DSP, GO to AU9
For the TCU, GO to AU10
No GO to AU5

AU5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
  • Ignition OFF.
  • Disconnect the suspect module.
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C4240A-1   Ground

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   Ground

    Click to display connectors

      DSP


    Positive Lead Measurement / Action Negative Lead
      C4326B-4   Ground
      C4326B-8   Ground

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C4803-1   Ground

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes GO to AU6
No REPAIR the circuit for high resistance.

AU6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C4240A-1   C4240A-14

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   C2383A-37

    Click to display connectors

      DSP


    Positive Lead Measurement / Action Negative Lead
      C4326B-4   C4326B-1
      C4326B-8   C4326B-5

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C4803-1   C4803-13

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM, GO to AU7
For the APIM, GO to AU8
For the DSP, GO to AU9
For the TCU, GO to AU10
No REPAIR the circuit for high resistance.

AU7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AU8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AU9 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AU10 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AV : U3003:17 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it rises above a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage is greater than 16 volts.
APIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage is greater than 16 volts.
DSP U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage is greater than 16 volts.
TCU U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage is greater than 16 volts.

Possible Sources

  • Charging system concern
  • ACM
  • APIM
  • DSP
  • TCU
NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.
AV1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AV2

AV2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING
  • Turn off all interior/exterior lights and accessories.
  • Start and run the engine at approximately 2,000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AV3

AV3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the suspect module.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module setting the high voltage DTC.

Is DTC U3003:17 still present?
Yes For the ACM, GO to AV4
For the APIM, GO to AV5
For the DSP, GO to AV6
For the TCU, GO to AV7
No The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

AV4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AV5 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AV6 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AV7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AW : BUS OFF

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U3000:88 Control Module: Bus Off The module could not communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC.

Possible Sources

  • Intermittent fault with the CAN
AW1 DIAGNOSE THE INTERMITTENT FAULT

NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC.

  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question.
  • Wait at least 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question.
  • Verify the integrity of the connectors and wiring for the CAN.

Is the DTC still present?
Yes DIAGNOSE the CAN in question.
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No The system is operating correctly at this time. VERIFY the integrity of the connectors and wiring for the CAN in question.

PINPOINT TEST AX : INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information Sets when the APIM receives invalid network data from the ABS module.
APIM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the BCM.
APIM U0423:00 Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the IPC.
APIM U0452:00 Invalid Data Received From Restraints Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the RCM.
DSP U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the DSP receives invalid network data from the BCM.
TCU U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the TCU receives invalid network data from the BCM.
TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information Sets when the TCU receives invalid network data from the APIM.

Possible Sources

  • Suspect module
AX1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data.

Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
Yes DIAGNOSE the module sending the invalid data. REFER to the appropriate section in the Workshop Manual.
No DIAGNOSE the observable symptom present. REFER to the appropriate Symptom chart in this section.

PINPOINT TEST AY : MODULE CONFIGURATION FAULT

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:04 Control Module Calibration Data #2: System Internal Failures Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:51 Control Module Calibration Data #2: Not Programmed Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:55 Control Module Calibration Data #2: Not Configured Sets due to an incomplete or incorrect ACM PMI.
ACM U2024:00 Control Module Cal-Config Data: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI.
ACM U2024:57 Control Module Cal-Config Data: Invalid/Incompatible Software Component Sets due to an incomplete or incorrect ACM PMI.
ACM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI.
ACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI.
APIM U2017:45 Control Module Software #2: Program Memory Failure Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:51 Control Module Software #2: Not Programmed Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:52 Control Module Software #2: Not Activated Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:54 Control Module Software #2: Missing Calibration Sets due to an incomplete or incorrect APIM PMI.
APIM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI.
APIM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI.
DSP U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:41 Control Module Cal-Config Data: General Checksum Failure Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:48 Control Module Cal-Config Data: Supervision Software Failure Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:51 Control Module Cal-Config Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI.
DSP U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI.
DSP U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI.
TCU B156D:55 TCU Customer Connectivity Settings Synchronization With HMI: Not Configured Sets due to an incomplete or incorrect TCU PMI.
TCU B156D:89 TCU Customer Connectivity Settings Synchronization With HMI: Data Transfer Failure Sets due to an incomplete or incorrect TCU PMI.
TCU U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect TCU PMI.
TCU U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect TCU PMI.

Possible Sources

  • Incomplete or incorrect ACM PMI
AY1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the PMI procedure for the suspect module as directed by the diagnostic scan tool.
    • For the APIM, refer to
      REFER to: SYNC Module [APIM] Programming (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, General Procedures).
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the original DTC still present?
Yes For the APIM,
   Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. For all other modules, INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AZ : INTERNAL MODULE FAILURE

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3000:41 Control Module: General Checksum Failure Sets when the ACM detects an internal fault.
ACM U3000:42 Control Module: General Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:92 Control Module: Performance Or Incorrect Operation Sets when the ACM detects an internal fault.
ACM U3000:94 Control Module: Unexpected Operation Sets when the ACM detects an internal fault.
ACM U3000:96 Control Module: Component Internal Failure Sets when the ACM detects an internal fault.
APIM U3000:04 Control Module: System Internal Failures Sets when the APIM detects an internal fault .
APIM U3000:09 Control Module: Component Failures Sets when the APIM detects an internal fault.
APIM U3000:41 Control Module: General Checksum Failure Sets when the APIM detects an internal fault.
DSP U3000:41 Control Module: General Checksum Failure Sets when the DSP detects an internal fault.
DSP U3000:42 Control Module: General Memory Failure Sets when the DSP detects an internal fault.
TCU U3000:41 Control Module: General Checksum Failure Sets when the TCU detects an internal fault.
TCU U3000:42 Control Module: General Memory Failure Sets when the TCU detects an internal fault.
TCU U3000:56 Control Module: Invalid/Incompatible Configuration Sets when the TCU detects an internal fault.

Possible Sources

  • Suspect module
AZ1 INSTALL A NEW SUSPECT MODULE
  • Ignition OFF.
  • NOTE: For the APIM, carry out the guided diagnostic first.
       Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
    INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS and follow the instructions for the applicable TSB, GSB, SSM or FSA.
No The repair is complete.

PINPOINT TEST BA : U3000:04, U3000:09, U3000:52, (TCU (TELEMATIC CONTROL UNIT MODULE) )

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U3000:04 Control Module: System Internal Failures Sets when the TCU detects an internal fault.
TCU U3000:09 Control Module: Component Failures Sets when the TCU detects an internal fault.
TCU U3000:52 Control Module: Not Activated Sets when the TCU detects an internal fault.

Possible Sources

  • TCU software
  • TCU
BA1 CLEAR THE DTC (DIAGNOSTIC TROUBLE CODE) AND RETEST
  • Ignition ON.
  • Clear the TCU DTC.
  • Wait 10 seconds.
  • Carry out the TCU on-demand self-test.

Is the DTC still present?
Yes GO to BA2
No The repair is complete.

BA2 PROGRAM THE TCU (TELEMATIC CONTROL UNIT MODULE)
  • Ignition OFF.
  • Disconnect the battery.
  • Wait 5 minutes.
  • Reconnect the battery.
  • Program the TCU with the latest software level using the IDS/FRDS.
  • Ignition ON.
  • NOTE: Make sure the SYNC system is connected to the internet before retesting. Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS and follow the instructions for the applicable TSB, GSB, SSM or FSA. INSTALL a new TCU. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.


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