Ford Explorer: Electronic Engine Controls - 2.3L EcoBoost (201kW/273PS) / Diagnosis and Testing - Electronic Engine Controls

Ford Explorer 2020-2024 Service Manual / Powertrain / Engine / Electronic Engine Controls - 2.3L EcoBoost (201kW/273PS) / Diagnosis and Testing - Electronic Engine Controls

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
  PCM P025A:00 Fuel Pump Module "A" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test L
  PCM P025B:00 Fuel Pump Module "A" Control Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test L
  PCM P025C:00 Fuel Pump Module "A" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test L
  PCM P025D:00 Fuel Pump Module "A" Control Circuit High: No Sub Type Information   GO to Pinpoint Test L
  PCM P027B:00 Fuel Pump Module "B" Control Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test L
  PCM P0521:00 Engine Oil Pressure Sensor/Switch "A" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test M
  PCM P0524:00 Engine Oil Pressure Too Low: No Sub Type Information   GO to Pinpoint Test M
  PCM P06DA:00 Engine Oil Pressure Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test N
  PCM P06DB:00 Engine Oil Pressure Control Circuit Low: No Sub Type Information   GO to Pinpoint Test N
  PCM P06DC:00 Engine Oil Pressure Control Circuit High: No Sub Type Information   GO to Pinpoint Test N
  PCM P06DD:00 Engine Oil Pressure Control Circuit Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test M
  PCM P06DE:00 Engine Oil Pressure Control Circuit Stuck On: No Sub Type Information   GO to Pinpoint Test M
  PCM P06E9:00 Engine Starter Performance: No Sub Type Information   GO to Pinpoint Test O
  PCM P1001:00 KOER Not Able to Complete, KOER Aborted: No Sub Type Information   GO to Pinpoint Test P
  PCM P166A:00 Restraints Deployment Communication Circuit: No Sub Type Information   GO to Pinpoint Test Q
  PCM U0103:00 Lost Communication With Gear Shift Control Module A: No Sub Type Information   GO to Pinpoint Test A
  PCM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information   GO to Pinpoint Test B
  PCM U0122:00 Lost Communication With Vehicle Dynamics Control Module: No Sub Type Information   GO to Pinpoint Test C
  PCM U0126:00 Lost Communication With Steering Angle Sensor Module: No Sub Type Information   GO to Pinpoint Test D
  PCM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information   GO to Pinpoint Test E
  PCM U0164:00 Lost Communication With HVAC Control Module: No Sub Type Information   GO to Pinpoint Test F
  PCM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information   GO to Pinpoint Test D
  PCM U0230:00 Lost Communication With Rear Gate Module: No Sub Type Information   GO to Pinpoint Test G
  PCM U023A:00 Lost Communication With Image Processing Module A: No Sub Type Information   GO to Pinpoint Test H
  PCM U0252:00 Lost Communication With Lighting Control Module- Rear "B": No Sub Type Information   GO to Pinpoint Test I
  PCM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information   GO to Pinpoint Test J
  PCM U0404:00 Invalid Data Received from Gear Shift Control Module A: No Sub Type Information   GO to Pinpoint Test K
  PCM U0405:00 Invalid Data Received From Cruise Control Module: No Sub Type Information   GO to Pinpoint Test K
  PCM U0416:00 Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information   GO to Pinpoint Test K
  PCM U101E:00 Invalid Internal Control Module Monitoring Data Received from Gear Shift Module: No Sub Type Information   GO to Pinpoint Test K
  PCM U101F:00 Invalid Internal Control Module Monitoring Data Received from Transmission Range Control Module: No Sub Type Information   GO to Pinpoint Test K
  PCM U102F:00 Invalid Internal Control Module Monitoring Data Received From All Wheel Drive Control Module: No Sub Type Information   GO to Pinpoint Test K
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Pinpoint Tests

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).


PINPOINT TEST A : U0103

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0103:00 Lost Communication With Gear Shift Control Module A: No Sub Type Information The PCM sets this DTC if data messages from the GSM module through the GWM are missing.

Possible Sources

  • Communications network concern
  • GSM
  • GWM
  • PCM
A1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to A2
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.

A2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the GSM module pass the network test?
Yes GO to A3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

A3 PERFORM GSM (GEAR SHIFT MODULE) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a GSM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: External Controls (307-05A Automatic Transmission External Controls - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No GO to A4

A4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to A5

A5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to A6

A6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0103 still present?
Yes GO to A7
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.

A7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 GSM, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 A8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

A8 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the GSM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the GSM connector(s). 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 GSM.
REFER to: Gear Shift Module (GSM) (307-05A Automatic Transmission External Controls - 10-Speed Automatic Transmission – 10R60, 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 : U0121

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information The PCM sets this DTC if data messages from the ABS module through the GWM are missing.

Possible Sources

  • Communications network concern
  • ABS module
  • GWM
  • PCM
B1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to B2
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.

B2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the ABS module pass the network test?
Yes GO to B3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

B3 PERFORM ABS (ANTI-LOCK BRAKE SYSTEM) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a ABS control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
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 B4

B4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to B5

B5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to B6

B6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0121 still present?
Yes GO to B7
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.

B7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 B8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

B8 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ABS control module connector.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the ABS control module 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, 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 C : U0122:

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0122:00 Lost Communication With Vehicle Dynamics Control Module: No Sub Type Information The PCM sets this DTC if data messages from the VDM through the GWM are missing.

Possible Sources

  • Communications network concern
  • VDM
  • GWM
  • PCM
C1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to C2
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.

C2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the VDM pass the network test?
Yes GO to C3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

C3 PERFORM VDM (VEHICLE DYNAMICS CONTROL MODULE) MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a VDM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
No GO to C4

C4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the BCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to C5

C5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to C6

C6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0122 still present?
Yes GO to C7
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.

C7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 VDM, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 C8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

C8 CHECK FOR CORRECT VDM (VEHICLE DYNAMICS CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the VDM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the VDM connector(s). 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
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 : U0126, U0212

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0126:00 Lost Communication With Steering Angle Sensor Module: No Sub Type Information he PCM sets this DTC if data messages from the SCCM through the GWM are missing.
PCM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information The PCM sets this DTC if data messages from the SCCM through the GWM are missing.

Possible Sources

  • Communications network concern
  • SCCM
  • GWM
  • PCM
D1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to D2
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.

D2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the SCCM module pass the network test?
Yes GO to D3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D3 PERFORM SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform a SCCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
No GO to D4

D4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to D5

D5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to D6

D6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0126 or U0212 still present?
Yes GO to D7
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.

D7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 SCCM, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 D8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

D8 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCCM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the SCCM connector(s). 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
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 E : U0151

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information The PCM sets this DTC if data messages from the RCM through the GWM are missing.

Possible Sources

  • Communications network concern
  • RCM
  • GWM
  • PCM
E1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to E2
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.

E2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the RCM pass the network test?
Yes GO to E3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

E3 PERFORM RCM (RESTRAINTS CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform a RCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to E4

E4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to E5

E5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to E6

E6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0151 still present?
Yes GO to E7
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.

E7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 E8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

E8 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RCM module connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the RCM module 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 F : U0164

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0164:00 Lost Communication With HVAC Control Module: No Sub Type Information The PCM sets this DTC if data messages from the HVAC control module through the GWM are missing.

Possible Sources

  • Communications network concern
  • HVAC control module
  • GWM
  • PCM
F1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to F2
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.

F2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the HVAC control module pass the network test?
Yes GO to F3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

F3 PERFORM HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a HVAC control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).
No GO to F4

F4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the BCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to F5

F5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to F6

F6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0164 still present?
Yes GO to F7
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.

F7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 HVAC control module, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 F8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

F8 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the HVAC control module connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the HVAC control module 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 HVAC control module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, 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 : U0230

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0230:00 Lost Communication With Rear Gate Module: No Sub Type Information The PCM sets this DTC if data messages from the RGTM module through the GWM are missing.

Possible Sources

  • Communications network concern
  • RGTM
  • GWM
  • PCM
G1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to G2
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.

G2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the RGTM module pass the network test?
Yes GO to G3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

G3 PERFORM RGTM (REAR GATE TRUNK MODULE) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a RGTM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Body Closures (501-03 Body Closures, Diagnosis and Testing).
No GO to G4

G4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to G5

G5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to G6

G6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0230 still present?
Yes GO to G7
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.

G7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 RGTM, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 G8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

G8 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RGTM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the RGTM connector(s). 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 RGTM module.
REFER to: Rear Gate Trunk Module (RGTM) (501-03 Body Closures, 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 : U023A

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U023A:00 Lost Communication With Image Processing Module A: No Sub Type Information The PCM sets this DTC if data messages from the IPMA through the GWM are missing.

Possible Sources

  • Communications network concern
  • IPMA
  • GWM
  • PCM
H1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to H2
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.

H2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the IPMA pass the network test?
Yes GO to H3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

H3 PERFORM IPMA (IMAGE PROCESSING MODULE A) SELF-TEST
  • Using a diagnostic scan tool, perform a IPMA module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).
No GO to H4

H4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to H5

H5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to H6

H6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U023A still present?
Yes GO to H7
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.

H7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 IPMA, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 H8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

H8 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPMA connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the IPMA connector(s). 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 IPMA.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, 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 : U0252

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0252:00 Lost Communication With Lighting Control Module- Rear "B": No Sub Type Information The PCM sets this DTC if data messages from the TRM through the GWM are missing.

Possible Sources

  • Communications network concern
  • TRM
  • GWM
  • PCM
I1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to I2
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.

I2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the TRM pass the network test?
Yes GO to I3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

I3 PERFORM TRM (TRAILER MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform a TRM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Trailer Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
No GO to I4

I4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to I5

I5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to I6

I6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0252 still present?
Yes GO to I7
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.

I7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 TRM, GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 I8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

I8 CHECK FOR CORRECT TRM (TRAILER MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TRM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the TRM connector(s). 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 TRM.
REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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 : U0253:

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information The PCM sets this DTC if data messages from the APIM through the GWM are missing.

Possible Sources

  • Communications network concern
  • APIM
  • GWM
  • PCM
J1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to J2
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.

J2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform a network test.

Did the APIM pass the network test?
Yes GO to J3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

J3 PERFORM APIM (SYNC MODULE) MODULE SELF-TEST
  • Using a diagnostic scan tool, perform a APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Information and Entertainment System - Vehicles With: SYNC 3 (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Diagnosis and Testing).
No GO to J4

J4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve the BCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to J5

J5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart in this section.
No GO to J6

J6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PCM self-test.

Is DTC U0253 still present?
Yes GO to J7
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.

J7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 GWM or PCM. If recent service history is found:
    • verify correct replacement module was installed
      • HVBOM 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 customer vehicle
      • 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 J8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

J8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector(s).
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the APIM connector(s). 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 APIM.
REFER to: SYNC Module [APIM] (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 K : U0404, U0405, U0416, U101E, U101F, U102F

Normal Operation and Fault Conditions

Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual Section 1 Description and Operation.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM U0404:00 Invalid Data Received from Gear Shift Control Module A: No Sub Type Information This DTC sets when the PCM receives invalid network data from the GSM.
PCM U0405:00 Invalid Data Received From Cruise Control Module: No Sub Type Information This DTC sets when the PCM receives invalid network data from the CCM.
PCM U0416:00 Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information This DTC sets when the PCM receives invalid network data from the VDM.
PCM U101E:00 Invalid Internal Control Module Monitoring Data Received from Gear Shift Module: No Sub Type Information This DTC sets when the PCM receives invalid network data from the GSM.
PCM U101F:00 Invalid Internal Control Module Monitoring Data Received from Transmission Range Control Module: No Sub Type Information This DTC sets when the PCM receives invalid network data from the TRCM.
PCM U102F:00 Invalid Internal Control Module Monitoring Data Received From All Wheel Drive Control Module: No Sub Type Information This DTC sets when the PCM receives invalid network data from the AWD contol module.

Possible Sources

  • Suspect Module
K1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
  • 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.

PINPOINT TEST L : P025A, P025B, P025C, P025D, P027B

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P025A:00 Fuel Pump Module "A" Control Circuit/Open: No Sub Type Information This DTCsets when the PCM detects the FPC circuit is open or shorted to voltage or ground.
PCM P025B:00 Fuel Pump Module "A" Control Circuit Range/Performance: No Sub Type Information This DTCsets when the fuel pump control module is still reporting that it is receiving an invalid duty cycle or frequency from the PCM after a calibrated amount of time.
PCM P025C:00 Fuel Pump Module "A" Control Circuit Low: No Sub Type Information This DTCsets when the PCM detects the FPC circuit is shorted to ground.
PCM P025D:00 Fuel Pump Module "A" Control Circuit High: No Sub Type Information This DTCsets when the PCM detects the FPC circuit is open or shorted to voltage.
PCM P027B:00 Fuel Pump Module "B" Control Circuit Range/Performance: No Sub Type Information This DTCsets when the fuel pump control module 2 is still reporting that it is receiving an invalid duty cycle or frequency from the PCM after a calibrated amount of time.

Possible Sources

  • Fuel pump
  • Fuel pump control module
  • PCM
  • Radio frequency interference or electromagnetic interference
  • Wiring, terminals or connectors
L1 DIAGNOSE THE CONCERN USING THE PC/ED (POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS) MANUAL
  • Diagnose the concern using the PC/ED manual.

Did the diagnosis in PC/ED instruct to install a new BCM?
Yes
   Click here to access Guided Routine (BCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No Concern was resolved PC/ED.

PINPOINT TEST M : P0521, P0524, P06DD, P06DE

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0521:00 Engine Oil Pressure Sensor/Switch "A" Circuit Range/Performance: No Sub Type Information This DTC sets when the PCM detects signal variation outside of the module parameters on the hardwired input from the engine oil pressure sensor.
PCM P0524:00 Engine Oil Pressure Too Low: No Sub Type Information This DTC sets when the PCM detects low engine oil pressure.
PCM P06DD:00 Engine Oil Pressure Control Circuit Performance/Stuck Off: No Sub Type Information This DTC sets when the PCM detects the engine oil pressure control solenoid valve is stuck off.
PCM P06DE:00 Engine Oil Pressure Control Circuit Stuck On: No Sub Type Information This DTC sets when the PCM detects the engine oil pressure control solenoid valve is stuck on.

Possible Sources

  • Communications network concern
  • Wiring, terminals or connectors
  • Internal or external engine oil leak
  • Low engine oil level
  • Low engine oil pressure
  • EOP sensor
  • Engine oil pressure control solenoid valve
  • PCM
M1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all PCM diagnostic trouble codes (DTCs)

Are there any PCM diagnostic trouble codes (DTCs) present?
Yes If diagnostic trouble codes (DTCs) P0521, P0524, P06DD or P06DE are present GO to M2 If diagnostic trouble codes (DTCs) P0522 or P0523 are present
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
. If diagnostic trouble codes (DTCs) P06DA, P06DB or P06DC are present GO to Pinpoint Test N
No The system is operating correctly at this time. The DTC may have been set due to an intermittent fault condition.

M2 CHECK THE ENGINE OIL LEVEL
  • Start the engine.
  • Allow the engine to run at idle until the engine temperature is warm or hot.
  • Ignition OFF.
  • Check the engine oil level.

Is the engine oil level low?
Yes FILL the engine oil to the appropriate level. Low engine oil level can cause a low engine oil pressure warning indicator to illuminate and a DTC will set. CHECK the system for normal operation.
No GO to M3

M3 MONITOR THE ENGINE OIL PRESSURE PID (PARAMETER IDENTIFICATION) WITH THE ENGINE OFF
  • Ignition OFF.
    • Wait at least 60 seconds.
  • KOEO
  • Using the diagnostic scan tool, view PCM Parameter Identifications (PIDs).

  • Access the  PCM  and monitor the  EOP_PRESS (kPa)  PID

  • Wait approximately 30 seconds.

Does the engine oil pressure read approximately 0 - 30 kPa?
Yes GO to M4
No VISUALLY CHECK the wiring harness and electrical connector for signs of damage. REPAIR as necessary. If there on no signs of damage, INSTALL a new engine oil pressure sensor.
REFER to: Engine Oil Pressure (EOP) Sensor (303-14A Electronic Engine Controls - 2.3L EcoBoost (201kW/273PS), Removal and Installation).

M4 CHECK THE ENGINE OIL PRESSURE AT IDLE
  • Start the engine.
  • Run the engine at idle for 2 minutes.
  • Using the diagnostic scan tool, view PCM Parameter Identifications (PIDs).

  • Access the  PCM  and monitor the  ECT (Deg C)  PID

    and monitor the ECT PID until the engine coolant temperature is equal or greater than 157.9 °F ( 70 °C).

  • Access the  PCM  and monitor the  EOP_PRESS (kPa)  PID


Is the PID equal or greater than 60 kPa?
Yes GO to M6
No GO to M5

M5 CARRY OUT THE VARIABLE OIL PRESSURE ACTUATOR UNBLOCK SEQUENCE AND RECHECK THE OIL PRESSURE

  • Access the  PCM  and control the  EOPDC_CMD (% Duty Cycle)  PID

  • Command the PID from MIN to MAX. Wait 15 seconds. Repeat this step 3 times waiting 15 seconds between between steps.

  • Access the  PCM  and monitor the  EOP_PRESS (kPa)  PID


Is the EOP_PRESS PID display equal or greater than 60 kPa?
Yes GO to M6
No CHECK the oil pressure using a mechanical gauge.
REFER to: Engine (303-00 Engine System - General Information, Diagnosis and Testing).

M6 COMMAND THE ENGINE OIL PRESSURE DUTY CYCLE PID (PARAMETER IDENTIFICATION)

  • Access the  PCM  and control the  RPM_DSD (Rpm)  PID

  • Set the desired engine speed to 1800 RPM.

  • Access the  PCM  and control the  EOPDC_CMD (% Duty Cycle)  PID

  • Set the PID to 20% and wait 10 seconds.

  • Access the  PCM  and monitor the  EOP_PRESS (kPa)  PID


Is the EOP greater than 170 kPa?
Yes GO to M8
No GO to M7

M7 CARRY OUT THE VARIABLE OIL PRESSURE ACTUATOR UNBLOCK SEQUENCE AND RECHECK THE OIL PRESSURE

  • Access the  PCM  and control the  EOPDC_CMD (% Duty Cycle)  PID

  • Command the PID from MIN to MAX. Wait 15 seconds. Repeat this step 3 times waiting 15 seconds between between steps.

  • Access the  PCM  and monitor the  EOP_PRESS (kPa)  PID


Is the EOP_PRESS PID display equal or greater than 60 kPa?
Yes GO to M8
No CHECK the oil pressure using a mechanical gauge.
REFER to: Engine (303-00 Engine System - General Information, Diagnosis and Testing).

M8 CLEAR AND CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all history PCM diagnostic trouble codes (DTCs)
  • Ignition ON.
    • Wait 20 seconds.
  • Start the engine and run at idle for 30 seconds.
  • Hold the accelerator WOT for 30 seconds.
  • Using a diagnostic scan tool, retrieve all PCM diagnostic trouble codes (DTCs).

Are there any PCM diagnostic trouble codes (DTCs) present?
Yes CHECK the oil pressure using a mechanical gauge.
REFER to: Engine (303-00 Engine System - General Information, Diagnosis and Testing).
No The oil pressure concern is not present. The concern may have been resolved by carrying out the unblock sequence.

PINPOINT TEST N : P06DA, P06DB, P06DC

Refer to Wiring Diagrams Cell 23 for schematic and connector information.

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P06DA:00 Engine Oil Pressure Control Circuit/Open: No Sub Type Information This DTC sets when the PCM detects an open on the engine oil pressure control solenoid valve circuit.
PCM P06DB:00 Engine Oil Pressure Control Circuit Low: No Sub Type Information This DTC sets when the PCM detects a short to ground on the engine oil pressure control solenoid valve circuit.
PCM P06DC:00 Engine Oil Pressure Control Circuit High: No Sub Type Information This DTC sets when the PCM detects a short to voltage on the engine oil pressure control solenoid valve circuit.

Possible Sources

  • Communications network concern
  • Wiring, terminals or connectors
  • Engine oil pressure control solenoid valve
  • PCM
N1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all PCM diagnostic trouble codes (DTCs)

Are any PCM diagnostic trouble codes (DTCs) present?
Yes GO to N2
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.

N2 CLEAR AND CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all PCM diagnostic trouble codes (DTCs)
  • Using a diagnostic scan tool, retrieve all PCM diagnostic trouble codes (DTCs)

Are any PCM diagnostic trouble codes (DTCs) present?
Yes GO to N3
No The system is operating correctly at this time. The DTC may have been set due to an intermittent fault condition.

N3 MONITOR THE ENGINE OIL PRESSURE CONTROL OUTPUT CIRCUIT FAULT PID (PARAMETER IDENTIFICATION)
  • Ignition ON.
  • Using the diagnostic scan tool, view PCM Parameter Identifications (PIDs).

  • Access the  PCM  and monitor the  EOPC_CIRC_F  PID


Is the PID reading True?
Yes GO to N4
No A circuit fault is not currently active. CLEAR any history diagnostic trouble codes (DTCs), drive the vehicle and RECHECK for PCM diagnostic trouble codes (DTCs).

N4 CHECK THE OIL PRESSURE CONTROL SOLENOID SUPPLY VOLTAGE
  • Ignition OFF.
  • Disconnect Oil pressure control solenoid C1748 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1748-1   Ground

Is the voltage greater than 11 volts?
Yes GO to N5
No VERIFY BJB fuse F8 (20A) is OK. If OK, REPAIR the open circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

N5 CHECK THE OIL PRESSURE CONTROL SOLENOID CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect PCM C1381E .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1748-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to N6

N6 CHECK THE OIL PRESSURE CONTROL SOLENOID CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-7   C1748-2

Is the resistance less than 3 ohms?
Yes GO to N7
No REPAIR the circuit.

N7 CHECK THE OIL PRESSURE CONTROL SOLENOID CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1748-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to N8
No REPAIR the circuit.

N8 CHECK THE OIL PRESSURE CONTROL SOLENOID FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    C1748 pin 1, component side C1748 pin 2, component side

Is the resistance less than 3 ohms?
Yes GO to N9
No INSTALL a new oil pressure control solenoid.
REFER to: Oil Pressure Control Solenoid (303-14A Electronic Engine Controls - 2.3L EcoBoost (201kW/273PS), Removal and Installation).

N9 VERIFY OIL PRESSURE CONTROL SOLENOID CONNECTION AND WIRING
  • Disconnect Engine oil pressure control solenoid C1748 .
  • Disconnect PCM connectors.
  • Inspect connectors and wiring:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect all 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 REPAIR the circuit or connector as needed.
No The system is operating correctly at this time. The concern may have been caused by loose module or solenoid connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O : P06E9

Normal Operation and Fault Conditions

REFER to: Engine - Overview (303-01A Engine - 2.3L EcoBoost (201kW/273PS), Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P06E9:00 Engine Starter Performance: No Sub Type Information No engine rotation detected during crank event

Possible Sources

  • Battery
  • Battery Cables
  • IPC
  • Starter
  • BJB starter relay
  • Wiring, terminals or connectors
O1 VERIFY THE ENGINE CRANKS
  • Place the ingnition switch in the START position.

Does the engine crank?
Yes REFER to PC/ED Section 3 and FOLLOW Symptom Chart 3 for No Start (Engine Cranks)
No
REFER to: Starting System - 2.3L EcoBoost (201kW/273PS) (303-06A Starting System - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).

PINPOINT TEST P : P1001

Normal Operation and Fault Conditions

REFER to: Starting System - System Operation and Component Description (303-06A Starting System - 2.3L EcoBoost (201kW/273PS), Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1001:00 KOER Not Able to Complete, KOER Aborted: No Sub Type Information This DTC sets when the KOER self-test does not complete in the time allowed.

Possible Sources

  • Incorrect self-test procedure
  • Unexpected response from the self-test monitors
  • RPM out of specification
P1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Place the ingnition switch in the START position.
  • Using a diagnostic scan tool retieve and and record all Diagnostic Trouble Codes (DTCs).
  • Repair any self-test or Continuous Memory Diagnostic Trouble Codes (CMDTCs) and clear the DTC(s).
  • Rerun the KOER self test.

Did DTC P1001 return?
Yes GO to P2
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.

P2 REPROGRAM THE PCM (POWERTRAIN CONTROL MODULE)
  • Reprogram the PCM with the latest software.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Rerun the KOER self test.

Did DTC P1001 return?
Yes
   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 DTC may have been set due to high network traffic or an intermittent fault condition.

PINPOINT TEST Q : P166A

Normal Operation and Fault Conditions

REFER to: Module Controlled Functions - System Operation and Component Description (419-10 Multifunction Electronic Modules, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P166A:00 Restraints Deployment Communication Circuit: No Sub Type Information This DTC sets when the PCM detects an open or short in the IES circuit.

Possible Sources

  • BCM
  • Wiring, terminals or connectors
Q1 DIAGNOSE THE CONCERN USING THE PC/ED (POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS) MANUAL
  • Diagnose the concern using the PC/ED manual pinpoint test.

Did the diagnosis in PC/ED instruct to install a new BCM?
Yes
   Click here to access Guided Routine (BCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
No Concern was resolved usingPC/ED manual pinpoint test.


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