Ford Explorer: Interior Lighting / Diagnosis and Testing - Interior Lighting

Ford Explorer 2020-2021 Service Manual / Electrical / Lighting / Interior Lighting / Diagnosis and Testing - Interior Lighting

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
  BCM B1175:01 Driver Door Ajar Switch:General Electrical Failure If the courtesy lamps are always on, GO to Pinpoint Test C
  BCM B1175:01 Driver Door Ajar Switch:General Electrical Failure If the courtesy lamps are inoperative, GO to Pinpoint Test A
  BCM B1176:01 Passenger Door Ajar Switch:General Electrical Failure If the courtesy lamps are always on, GO to Pinpoint Test C
  BCM B1176:01 Passenger Door Ajar Switch:General Electrical Failure If the courtesy lamps are inoperative, GO to Pinpoint Test A
  BCM B11C0:01 Driver Side Rear Door Ajar Switch:General Electrical Failure If the courtesy lamps are always on, GO to Pinpoint Test C
  BCM B11C0:01 Driver Side Rear Door Ajar Switch:General Electrical Failure If the courtesy lamps are inoperative, GO to Pinpoint Test A
  BCM B11C1:01 Passenger Side Rear Door Ajar Switch:General Electrical Failure If the courtesy lamps are always on, GO to Pinpoint Test C
  BCM B11C1:01 Passenger Side Rear Door Ajar Switch:General Electrical Failure If the courtesy lamps are inoperative, GO to Pinpoint Test A
  BCM B12C2:11 Puddle Lamp:Circuit Short To Ground   GO to Pinpoint Test B
  BCM B12C2:15 Puddle Lamp:Circuit Short To Battery or Open If the illuminated scuff plates are always on, GO to Pinpoint Test D
  BCM B12C2:15 Puddle Lamp:Circuit Short To Battery or Open If one or both illuminated scuff plates are inoperative, GO to Pinpoint Test B
  BCM B1306:01 Liftgate Ajar Switch:General Electrical Failure If the courtesy lamps are always on, GO to Pinpoint Test C
  BCM B1306:01 Liftgate Ajar Switch:General Electrical Failure If the courtesy lamps are inoperative, GO to Pinpoint Test J
  BCM B1313:11 Interior Lighting Output:Circuit Short To Ground   GO to Pinpoint Test B
  BCM B1313:15 Interior Lighting Output:Circuit Short To Battery or Open If the courtesy lamps are always on, GO to Pinpoint Test D
  BCM B1313:15 Interior Lighting Output:Circuit Short To Battery or Open If the courtesy lamps are inoperative, GO to Pinpoint Test B
  BCM B145C:11 Ambient Lighting Power Supply Output:Circuit Short To Ground   GO to Pinpoint Test H
  BCM B145C:15 Ambient Lighting Power Supply Output:Circuit Short To Battery or Open   GO to Pinpoint Test H
  BCM B1465:00 Ambient Lighting Bus 1:No Sub Type Information If all the ambient lighting is inoperative, always on or does not change color/intensity, GO to Pinpoint Test H
  BCM B1465:00 Ambient Lighting Bus 1:No Sub Type Information If one or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change color/intensity, GO to Pinpoint Test I
  BCM B1465:96 Ambient Lighting Bus 1:Component Internal Failure If all the ambient lighting is inoperative, always on or does not change color/intensity, GO to Pinpoint Test H
  BCM B1465:96 Ambient Lighting Bus 1:Component Internal Failure If one or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change color/intensity, GO to Pinpoint Test I
  BCM B1467:00 Ambient Lighting Bus 3:No Sub Type Information If all the ambient lighting is inoperative, always on or does not change color/intensity, GO to Pinpoint Test H
  BCM B1467:00 Ambient Lighting Bus 3:No Sub Type Information If one or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change color/intensity, GO to Pinpoint Test I
  BCM B1467:96 Ambient Lighting Bus 3:Component Internal Failure If all the ambient lighting is inoperative, always on or does not change color/intensity, GO to Pinpoint Test H
  BCM B1467:96 Ambient Lighting Bus 3:Component Internal Failure If one or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change color/intensity, GO to Pinpoint Test I
  BCM B14AA:11 Demand Lamp Output:Circuit Short To Ground   GO to Pinpoint Test E
  BCM B14AA:15 Demand Lamp Output:Circuit Short To Battery or Open   GO to Pinpoint Test E
  BCM B153C:11 Color Ambient Light Output:Circuit Short To Ground   GO to Pinpoint Test H
  BCM B153C:15 Color Ambient Light Output:Circuit Short To Battery or Open   GO to Pinpoint Test H
  DDM B1165:11 Left Front Puddle Lamp Output:Circuit Short To Ground   GO to Pinpoint Test G
  DDM B1165:15 Left Front Puddle Lamp Output:Circuit Short To Battery Or Open   GO to Pinpoint Test G
  PDM B1166:11 Right Front Puddle Lamp Output:Circuit Short To Ground   GO to Pinpoint Test G
  PDM B1166:15 Right Front Puddle Lamp Output:Circuit Short To Battery Or Open   GO to Pinpoint Test G
  RGTM B1306:11 Liftgate Ajar Switch:Circuit Short To Ground   GO to Pinpoint Test J
  RGTM B1306:12 Liftgate Ajar Switch:Circuit Short To Battery   GO to Pinpoint Test C

Symptom Chart(s)

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).

Symptom Chart: Interior Lighting


Condition Possible Sources Actions
A module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Module
 
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
All courtesy lamps do not illuminate at any time - police vehicles only Police Silent Mode is active For police equipped vehicles, when Police Silent Mode is activated through the instrument cluster message center, the courtesy lamps will not illuminate. Courtesy lamps operation will return to normal when Police Silent Mode is deactivated. For more information on Police Silent Mode function, activation and deactivation,
REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
The courtesy lamps do not illuminate with a door open Refer to the Pinpoint Test   GO to Pinpoint Test A
One or more interior courtesy lamps are inoperative Refer to the Pinpoint Test   GO to Pinpoint Test B
The courtesy lamps do not illuminate with the liftgate open Refer to the Pinpoint Test   GO to Pinpoint Test J
A puddle lamp is inoperative or always on Refer to the Pinpoint Test   GO to Pinpoint Test G
All the courtesy lamps stay on continuously Refer to the Pinpoint Test   GO to Pinpoint Test C
The interior courtesy lamps stay on continuously Refer to the Pinpoint Test   GO to Pinpoint Test D
One or more demand lamps are inoperative Refer to the Pinpoint Test   GO to Pinpoint Test E
The battery saver does not deactivate after time-out Refer to the Pinpoint Test   GO to Pinpoint Test F
The ambient lighting is inoperative or always on Refer to the Pinpoint Test   GO to Pinpoint Test H
One or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change color/intensity Refer to the Pinpoint Test   GO to Pinpoint Test I

Pinpoint Tests


PINPOINT TEST A : THE COURTESY LAMPS DO NOT ILLUMINATE WITH A DOOR OPEN

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1175:01 Drivers Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the LH front door ajar circuit.
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the RH front door ajar circuit.
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the LH rear door ajar circuit.
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the RH rear door ajar circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Door latch
  • BCM
NOTE: Make sure the dark car feature is not enabled in the BCM. The dark car feature disables activation of courtesy lamps due to a door unlock, door ajar or removing the key from the ignition cylinder. The feature can be disabled using a scan tool.
A1 CHECK THE DOOR AJAR SWITCH OPERATION
  • Disconnect Suspect door latch.

Do the courtesy lamps illuminate?
Yes For a front door, INSTALL a new front door latch.
REFER to: Front Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For a rear door, INSTALL a new rear door latch.
REFER to: Rear Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).
No GO to A2

A2 CHECK THE DOOR AJAR SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280E .
  • Measure:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C525-4   Ground

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C603-3   Ground

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C704-4   Ground

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C804-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A3
No REPAIR the circuit.

A3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST B : ONE OR MORE INTERIOR COURTESY LAMPS ARE INOPERATIVE

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B12C2:11 Puddle Lamp: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the scuff plate lighting output circuit.
BCM B12C2:15 Puddle Lamp: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the scuff plate lighting output circuit.
BCM B1313:11 Interior Lighting Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the interior lighting output circuit.
BCM B1313:15 Interior Lighting Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the interior lighting output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Interior lamp
  • BCM
NOTE: Make sure the dark car feature is not enabled in the BCM. The dark car feature disables activation of courtesy lamps due to a door unlock, door ajar or removing the key from the ignition cylinder. The feature can be disabled using a scan tool.
B1 CHECK THE OPERATION OF ALL THE INTERIOR COURTESY LAMPS
  • Open a door and observe the interior courtesy lamps.

Are all the interior courtesy lamps inoperative?
Yes GO to Pinpoint Test A
No If only one of the illuminated scuff plates are inoperative, GO to B2
If both of the illuminated scuff plates are inoperative, GO to B4
If only the front interior lamp is inoperative, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). If all the overhead interior lamp(s) and the cargo lamp are inoperative, GO to B6
If a single overhead interior or cargo lamp is inoperative, GO to B11
If all of the overhead interior and cargo lamps are inoperative, GO to B13

B2 CHECK FOR VOLTAGE TO THE ILLUMINATED SCUFF PLATE
  • Close the door.
  • Disconnect Inoperative LH Scuff Plate C3369 or RH Scuff Plate C3370 .
  • Ignition ON.
  • Open a door.
  • Measure:
    Click to display connectors

      LH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3369-1   Ground

    Click to display connectors

      RH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3370-1   Ground

Is the voltage greater than 11 volts?
Yes GO to B3
No REPAIR the circuit.

B3 CHECK THE ILLUMINATED SCUFF PLATE GROUND CIRCUIT
  • Measure:
    Click to display connectors

      LH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3369-1   C3369-2

    Click to display connectors

      RH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3370-1   C3370-2

Is the voltage greater than 11 volts?
Yes INSTALL a new illuminated scuff plate.
No REPAIR the circuit.

B4 CHECK THE ILLUMINATED SCUFF PLATES VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Close the door.
  • Disconnect LH Scuff Plate C3369 and RH Scuff Plate C3370 .
  • Disconnect BCM C2280C .
  • Measure:
    Click to display connectors

      LH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3369-1   C2280C-26

Is the resistance less than 3 ohms?
Yes GO to B5
No REPAIR the circuit.

B5 CHECK THE ILLUMINATED SCUFF PLATE LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors

      LH Scuff Plate Lamp


    Positive Lead Measurement / Action Negative Lead
      C3369-1   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B16
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

B6 CHECK FOR VOLTAGE TO THE FRONT INTERIOR LAMP
  • Close the door.
  • Disconnect Overhead Console C930 .
  • Ignition ON.
  • Open a door.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-10   Ground

Is the voltage greater than 11 volts?
Yes GO to B7
No GO to B8

B7 CHECK THE OVERHEAD CONSOLE GROUND CIRCUIT
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-10   C930-6

Is the voltage greater than 11 volts?
Yes INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).
No REPAIR the overhead console ground circuit.

B8 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT INTERIOR LAMP
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-10   Ground

Is the voltage greater than 11 volts?
Yes INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).
No GO to B9

B9 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280B .
  • Disconnect BCM C2280C .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-10   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B10
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

B10 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-10   C2280B-13
      C930-10   C2280C-13

Is the resistance less than 3 ohms?
Yes GO to B16
No REPAIR the circuit.

B11 CHECK FOR VOLTAGE TO THE REAR COURTESY LAMP
  • Close the door.
  • Disconnect Inoperative LH Second Row Interior Lamp C963 .
  • Disconnect Inoperative RH Second Row Interior Lamp C964 .
  • Disconnect Inoperative Third Row Interior Lamp C9054 .
  • Disconnect Inoperative Cargo Lamp C489 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-1   Ground

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-1   Ground

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-1   Ground

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-1   Ground

Is the voltage greater than 11 volts?
Yes GO to B12
No REPAIR the circuit.

B12 CHECK THE REAR COURTESY LAMP GROUND CIRCUIT
  • Measure:
    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-1   C963-3

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-1   C964-3

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-1   C9054-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-1   C489-3

Is the voltage greater than 11 volts?
Yes GO to B13
No REPAIR the circuit.

B13 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect Overhead Console C930 .
  • Disconnect LH Second Row Interior Lamp C963 .
  • Disconnect RH Second Row Interior Lamp C964 .
  • Disconnect Third Row Interior Lamp C9054 .
  • Disconnect Cargo Lamp C489 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to B14

B14 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-2   C930-3

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-2   C930-3

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-2   C930-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-2   C930-3

Is the resistance less than 3 ohms?
Yes GO to B15
No REPAIR the circuit.

B15 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-3   Ground

Is the resistance greater than 10,000 ohms?
Yes If all rear interior and cargo lamps are inoperative, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). If only one rear interior or cargo lamp is inoperative, INSTALL a new lamp.
No REPAIR the circuit.

B16 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST C : ALL THE COURTESY LAMPS STAY ON CONTINUOUSLY

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1175:01 Drivers Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the LH front door ajar circuit.
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the RH front door ajar circuit.
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the LH rear door ajar circuit.
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the RH rear door ajar circuit.
BCM B1306:01 Liftgate Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the liftgate ajar circuit.
RGTM B1306:12 Liftgate Ajar Switch: Circuit Short To Battery A continuous memory and on-demand DTC that sets when the RGTM detects a short to voltage on the liftgate ajar output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Ajar switch
  • Door or latch alignment
  • BCM
C1 CHECK THE DOOR AJAR SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
  • Monitor the following BCM Parameter Identifications (PIDs) while opening and closing all the doors and liftgate.
    • Access the  BCM  and monitor the  DOOR_SW_DRVR  PID

    • Access the  BCM  and monitor the  DOOR_SW_PSGR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LR  PID

    • Access the  BCM  and monitor the  DOOR_SW_RR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LUGG  PID


Do all the door ajar switch PID values agree with the door and liftgate positions?
Yes For the interior courtesy and puddle lamps (vehicles without memory mirrors), GO to Pinpoint Test D
For the puddle lamps (vehicles with memory mirrors), GO to Pinpoint Test G
No GO to C2

C2 CHECK THE DOOR, LATCH AND STRIKER ALIGNMENT
  • Inspect the door, latch and striker alignment.

Is the door, latch and striker aligned correctly?
Yes GO to C3
No ALIGN the door, latch or striker.

C3 BYPASS THE SUSPECT DOOR LATCH
  • Disconnect Suspect door latch.
  • Connect a fused jumper wire:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C525-4   C525-3

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C603-3   C603-4

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C704-4   C704-3

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C804-3   C804-4

    Click to display connectors

      Liftgate Ajar Switch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C457-1   C457-5

    Click to display connectors

      Liftgate Ajar Switch (with power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4174A-21   C4174A-14
  • Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
  • Monitor the following BCM Parameter Identifications (PIDs) while opening and closing all the doors and liftgate.
    • Access the  BCM  and monitor the  DOOR_SW_DRVR  PID

    • Access the  BCM  and monitor the  DOOR_SW_PSGR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LR  PID

    • Access the  BCM  and monitor the  DOOR_SW_RR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LUGG  PID


Does the PID indicate the liftgate or door in question is closed?
Yes REMOVE the fused jumper wire.
For the manual liftgate, INSTALL a new manual liftgate latch.
REFER to: Liftgate Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For the power liftgate, GO to C6
For the doors, inspect the suspect door latch connectors for damage. Reconnect the door latch connectors and make sure they seat and latch correctly. If the concern is still present, replace the door latch.
For a front door,
REFER to: Front Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For a rear door,
REFER to: Rear Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).
No REMOVE the fused jumper wire.
For the power liftgate, GO to C5
For all others, GO to C4

C4 BYPASS THE DOOR LATCH GROUND CIRCUIT
  • Connect a fused jumper wire:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C525-4   Ground

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C603-3   Ground

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C704-4   Ground

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C804-3   Ground

    Click to display connectors

      Liftgate Ajar Switch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C457-1   Ground
  • Monitor the following BCM Parameter Identifications (PIDs) while opening and closing all the doors and liftgate.
    • Access the  BCM  and monitor the  DOOR_SW_DRVR  PID

    • Access the  BCM  and monitor the  DOOR_SW_PSGR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LR  PID

    • Access the  BCM  and monitor the  DOOR_SW_RR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LUGG  PID


Does the PID indicate the liftgate or door in question is closed?
Yes REMOVE the fused jumper wire. REPAIR the ground circuit for an open.
No REMOVE the fused jumper wire. GO to C5

C5 CHECK THE SUSPECT DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280E .
  • Measure:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C525-4   C2280E-33

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C603-3   C2280E-21

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C704-4   C2280E-46

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C804-3   C2280E-19

    Click to display connectors

      Liftgate Ajar Switch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C457-1   C2280E-34

    Click to display connectors

      Liftgate Ajar Switch (with power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4174A-21   C2280E-34

Is the resistance less than 3 ohms?
Yes GO to C7
No REPAIR the door ajar input circuit in question.

C6 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) OPERATION
  • Disconnect and inspect all RGTM connectors and related in-line connectors.
  • 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 connectors and 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 RGTM.
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. CLEAR the Diagnostic Trouble Codes (DTCs).

C7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST D : THE INTERIOR COURTESY LAMPS STAY ON CONTINUOUSLY

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1313:15 Interior Lighting Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the interior lighting output circuit.
BCM B12C2:15 Puddle Lamp: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the illuminated scuff plate output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Interior lamp
  • BCM
D1 CHECK THE DOOR AJAR SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • Using a scan tool, monitor the BCM Parameter Identifications (PIDs).
  • Monitor the following BCM Parameter Identifications (PIDs) while opening and closing all the doors and liftgate.
    • Access the  BCM  and monitor the  DOOR_SW_DRVR  PID

    • Access the  BCM  and monitor the  DOOR_SW_PSGR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LR  PID

    • Access the  BCM  and monitor the  DOOR_SW_RR  PID

    • Access the  BCM  and monitor the  DOOR_SW_LUGG  PID


Do all the door ajar switch PID values agree with the door positions?
Yes GO to D2
No GO to Pinpoint Test C

D2 ISOLATE THE BCM (BODY CONTROL MODULE)
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Ignition ON.

Do the interior courtesy lamps continue to illuminate?
Yes REPAIR the circuit for a short to voltage.
For illuminated front scuff plates only, REPAIR the circuit for a short to voltage.
For front interior lamp only, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For rear overhead and cargo lamp(s) only, GO to D3
No GO to D6

D3 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect Overhead Console C930 .
  • Disconnect LH Second Row Interior Lamp C963 .
  • Disconnect RH Second Row Interior Lamp C964 .
  • Disconnect Third Row Interior Lamp C9054 .
  • Disconnect Cargo Lamp C489 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to D4

D4 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-2   C930-3

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-2   C930-3

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-2   C930-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-2   C930-3

Is the resistance less than 3 ohms?
Yes GO to D5
No REPAIR the circuit.

D5 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-3   Ground

Is the resistance greater than 10,000 ohms?
Yes If all rear interior lamps are inoperative, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). If only one rear interior lamp is inoperative, INSTALL a new rear interior lamp.
No REPAIR the circuit.

D6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST E : ONE OR MORE DEMAND LAMPS ARE INOPERATIVE

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B14AA:11 Demand Lamp Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the demand lighting output circuit.
BCM B14AA:15 Demand Lamp Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the demand lighting output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Demand lamp
  • BCM

Visual Inspection and Pre-checks

  • Inspect the LEDs and make sure they are OK.
  • Inspect the interior lamps for damage.
E1 CHECK THE DEMAND LAMP OPERATION
  • Ignition ON.
  • Check the operation of the LH vanity mirror, RH vanity mirror, overhead map, cargo, police task and glove box lamps.

Does the LH vanity mirror, RH vanity mirror, overhead map, cargo, police task or glove box lamp illuminate?
Yes If a vanity mirror lamp is inoperative, GO to E6
If the glove compartment lamp is inoperative, GO to E8
If an overhead lamp, cargo lamp, or police task lamp is inoperative, GO to E10
If a media bin or storage bin lamp is inoperative, GO to E12
No GO to E2

E2 CHECK FOR VOLTAGE TO THE FRONT OVERHEAD MAP LAMP
  • Ignition OFF.
  • Disconnect Overhead Console C930 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E10
No .GO to E3

E3 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT OVERHEAD MAP LAMP
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-1   Ground

Is the voltage greater than 11 volts?
Yes INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).
No GO to E4

E4 CHECK THE BCM (BODY CONTROL MODULE) DEMAND LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Disconnect Glove Compartment Lamp C254 .
  • Disconnect LH Vanity Mirror Lamp C907 .
  • Disconnect RH Vanity Mirror Lamp C906 .
  • Disconnect LH Second Row Interior Lamp C963 .
  • Disconnect RH Second Row Interior Lamp C964 .
  • Disconnect Third Row Interior Lamp C9054 .
  • Disconnect Cargo Lamp C489 .
  • Disconnect Police Task Lamp C9049 .
  • Disconnect Police Cargo Task Lamp C9053 .
  • Disconnect Media Bin Lamp C2144 .
  • Disconnect Center Console Media Bin Lamp C374 .
  • Disconnect Center Console Rear Storage Bin Lamp C3553 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-1   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to E5
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

E5 CHECK THE BCM (BODY CONTROL MODULE) DEMAND LAMP OUTPUT CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C930-1   C2280C-14

Is the resistance less than 3 ohms?
Yes GO to E14
No REPAIR the circuit.

E6 CHECK THE VANITY MIRROR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Inoperative LH Vanity Mirror Lamp C907 or RH Vanity Mirror Lamp C906 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH Vanity Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C907-1   Ground

    Click to display connectors

      RH Vanity Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C906-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E7
No REPAIR the circuit.

E7 CHECK THE VANITY MIRROR GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Vanity Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C907-1   C907-2

    Click to display connectors

      RH Vanity Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C906-1   C906-2

Is the voltage greater than 11 volts?
Yes INSTALL a new sun visor for the lamp in question.
No REPAIR the circuit.

E8 CHECK THE GLOVE COMPARTMENT LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Glove Compartment Lamp C254 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C254-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E9
No REPAIR the circuit.

E9 CHECK THE GLOVE COMPARTMENT LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C254-1   C254-2

Is the voltage greater than 11 volts?
Yes INSTALL a new glove compartment lamp.
No REPAIR the circuit.

E10 CHECK THE OVERHEAD INTERIOR LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Overhead Console C930 .
  • Disconnect Inoperative LH Second Row Interior Lamp C963 .
  • Disconnect Inoperative RH Second Row Interior Lamp C964 .
  • Disconnect Inoperative Third Row Interior Lamp C9054 .
  • Disconnect Inoperative Cargo Lamp C489 .
  • Disconnect Inoperative Police Task Lamp C9049 .
  • Disconnect Inoperative Police Cargo Task Lamp C9053 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Overhead Console


    Positive Lead Measurement / Action Negative Lead
      C930-1   Ground

    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-1   Ground

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-1   Ground

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-1   Ground

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-1   Ground

    Click to display connectors

      Police Task Lamp


    Positive Lead Measurement / Action Negative Lead
      C9049-1   Ground

    Click to display connectors

      Police Cargo Task Lamp


    Positive Lead Measurement / Action Negative Lead
      C9053-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E11
No REPAIR the circuit.

E11 CHECK THE OVERHEAD INTERIOR LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Overhead Console


    Positive Lead Measurement / Action Negative Lead
      C930-1   C931-6

    Click to display connectors

      LH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C963-1   C963-3

    Click to display connectors

      RH Second Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C964-1   C964-3

    Click to display connectors

      Third Row Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C9054-1   C9054-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C489-1   C489-3

    Click to display connectors

      Police Task Lamp


    Positive Lead Measurement / Action Negative Lead
      C9049-1   C9049-2

    Click to display connectors

      Police Cargo Task Lamp


    Positive Lead Measurement / Action Negative Lead
      C9053-1   C9053-2

Is the voltage greater than 11 volts?
Yes For an inoperative front interior lamp, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For a police task lamp, INSTALL a new police task lamp.
For all other interior lamps, INSTALL a new interior lamp.
No REPAIR the circuit.

E12 CHECK THE MEDIA AND STORAGE BIN LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Media Bin Lamp C2144 .
  • Disconnect Center Console Media Bin Lamp C374 .
  • Disconnect Center Console Rear Storage Bin Lamp C3553 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Media Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C2144-1   Ground

    Click to display connectors

      Center Console Media Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C374-1   Ground

    Click to display connectors

      Center Console Rear Storage Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C3553-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E13
No REPAIR the circuit.

E13 CHECK THE MEDIA AND STORAGE BIN LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Media Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C2144-1   C2144-3

    Click to display connectors

      Center Console Media Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C374-1   C374-3

    Click to display connectors

      Center Console Rear Storage Bin Lamp


    Positive Lead Measurement / Action Negative Lead
      C3553-1   C3553-3

Is the voltage greater than 11 volts?
Yes INSTALL a new lamp.
No REPAIR the circuit.

E14 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST F : THE BATTERY SAVER DOES NOT DEACTIVATE AFTER TIME-OUT

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • BCM
F1 CHECK THE DEMAND LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Turn any demand (map or vanity mirror) lamp on.

Does the demand lamp turn on?
Yes REPAIR the circuit.
No GO to F2

F2 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST G : A PUDDLE LAMP IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 89 for schematic and connector information. Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM B1165:11 Left Front Puddle Lamp Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the DDM detects a short to ground from the puddle lamp output circuit.
DDM B1165:15 Left Front Puddle Lamp Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the DDM detects an open or a short to voltage from the puddle lamp output circuit.
PDM B1166:11 Right Front Puddle Lamp Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the PDM detects a short to ground from the puddle lamp output circuit.
PDM B1166:15 Right Front Puddle Lamp Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the PDM detects an open or a short to voltage from the puddle lamp output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Puddle lamp
  • Exterior mirror
  • DDM
  • PDM

Visual Inspection and Pre-checks

  • Inspect the exterior mirror for damage.
G1 CHECK THE OPERATION OF THE INTERIOR COURTESY LAMPS
  • Ignition ON.
  • Ignition OFF.
  • Open and close a door.
  • Observe the interior courtesy lamp operation for 30 seconds.

Do the interior courtesy lamps operate correctly?
Yes If a puddle lamp is always on, GO to G2
If a puddle lamp is inoperative, GO to G3
No REFER to the Interior Lamps Symptom Chart in this section and diagnose the interior courtesy lamps.

G2 CHECK THE PUDDLE LAMP POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect DDM C501B (LH puddle lamp).
  • Disconnect PDM C652B (RH puddle lamp).
  • Ignition ON.

Does the puddle lamp continue to illuminate?
Yes REPAIR the circuit.
No For a LH door module, GO to G8
For a RH door module, GO to G9

G3 CHECK THE MIRROR OPERATION
  • Ignition ON.
  • Using the exterior mirror control switch, operate the exterior power mirrors.

Do the exterior power mirrors operate?
Yes GO to G4
No
REFER to: Rear View Mirrors (501-09 Rear View Mirrors, Diagnosis and Testing).

G4 CHECK FOR VOLTAGE TO THE PUDDLE LAMP
  • Ignition OFF.
  • Disconnect Inoperative LH Exterior Mirror C516 or RH Exterior Mirror C601 .
  • Ignition ON.
  • Open any door.
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C516-5   Ground

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C601-5   Ground

Is the voltage greater than 11 volts?
Yes GO to G7
No GO to G5

G5 CHECK THE PUDDLE LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect DDM C501B (LH puddle lamp).
  • Disconnect PDM C652B (RH puddle lamp).
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C516-5   Ground

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C601-5   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G6
No REPAIR the circuit.

G6 CHECK THE PUDDLE LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C516-5   C501B-5

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C601-5   C652B-5

Is the resistance less than 3 ohms?
Yes For a LH door module, GO to G8
For a RH door module, GO to G9
No REPAIR the circuit.

G7 CHECK THE EXTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C516-5   C516-8

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C601-5   C601-8

Is the voltage greater than 11 volts?
Yes CHECK the exterior mirror jumper harness between the vehicle harness and the puddle lamp for open circuits and damaged or pushed-out pins. If the jumper harness is OK, INSTALL a new puddle lamp.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation). If the jumper harness is not OK, REPAIR the jumper harness.
No REPAIR the circuit.

G8 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Disconnect and inspect all DDM connectors and related in-line connectors.
  • 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 DDM connectors and 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 DDM.
REFER to: Driver Door Module (DDM) (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. CLEAR the Diagnostic Trouble Codes (DTCs).

G9 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Disconnect and inspect all PDM connectors and related in-line connectors.
  • 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 PDM connectors and 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 PDM.
REFER to: Passenger Door Module (PDM) (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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST H : THE AMBIENT LIGHTING IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B145C:11 Ambient Lighting Power Supply Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the ambient light module conditioned power supply output circuit.
BCM B145C:15 Ambient Lighting Power Supply Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the ambient light module conditioned power supply output circuit.
BCM B1465:00 Ambient Lighting Bus 1: No Sub Type Information A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1465:96 Ambient Lighting Bus 1: Component Internal Failure A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1467:00 Ambient Lighting Bus 3: No Sub Type Information A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1467:96 Ambient Lighting Bus 3: Component Internal Failure A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B153C:11 Color Ambient Light Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the ambient light module conditioned power supply output circuit.
BCM B153C:15 Color Ambient Light Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the ambient light module conditioned power supply output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • FDIM
  • BCM
H1 CHECK THE FDIM (FRONT DISPLAY INTERFACE MODULE) AUDIO CONTROLS
  • Ignition ON.
  • Check the operation of the audio system using the FDIM (touchscreen) controls.

Does the audio system operate correctly from the touchscreen controls?
Yes GO to H2
No
REFER to: Information and Entertainment System - Vehicles Without: SYNC 3 (415-00A Information and Entertainment System - General Information - Vehicles Without: SYNC 3, Diagnosis and Testing).

H2 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the BCM self-test.

Is DTC B1465:00, B1465:96, B1467:00, B1467:96, B145C:11, B145C:15, B153C:11 or B153C:15 present?
Yes For DTC B1465:00 and B1465:96, GO to H3
For DTC B1467:00 and B1467:96, GO to H7
For DTC B145C:11 and B153C:11, GO to H11
For DTC B145C:15 and B153C:15, GO to H12
No GO to H14

H3 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280E .
  • Disconnect BCM C2280C .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280E-38   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to H4

H4 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect LH Front Door LED C573 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C573-2   C2280E-38

Is the resistance less than 3 ohms?
Yes GO to H5
No REPAIR the circuit.

H5 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect RH Front Door LED C649 .
  • Disconnect LH Rear Door LED C737 .
  • Disconnect RH Rear Door LED C837 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C573-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H6
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

H6 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO THE VOLTAGE SUPPLY CIRCUIT
  • Disconnect BCM C2280C .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280E-38   C2280C-4

Is the resistance greater than 10,000 ohms?
Yes GO to H14
No REPAIR the circuit.

H7 CHECK THE FRONT FOOTWELL AND CENTER CONSOLE CUP HOLDER AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280B .
  • Disconnect BCM C2280C .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-13   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to H8

H8 CHECK THE FRONT FOOTWELL AND CENTER CONSOLE CUP HOLDER AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect LH Front Footwell Lamp C209 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-13   C209-2

Is the resistance less than 3 ohms?
Yes GO to H9
No REPAIR the circuit.

H9 CHECK THE FRONT FOOTWELL AND CENTER CONSOLE CUP HOLDER AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect RH Front Footwell Lamp C266 .
  • Disconnect Floor Console Cup Holder Ambient Lamp C3349 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-13   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H10
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

H10 CHECK THE FRONT FOOTWELL AND CENTER CONSOLE CUP HOLDER AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO THE VOLTAGE SUPPLY CIRCUIT
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-13   C2280C-4

Is the resistance greater than 10,000 ohms?
Yes GO to H14
No REPAIR the circuit.

H11 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280C .
  • Disconnect LH Front Door LED C573 .
  • Disconnect RH Front Door LED C649 .
  • Disconnect LH Rear Door LED C737 .
  • Disconnect RH Rear Door LED C837 .
  • Disconnect LH Front Footwell Lamp C209 .
  • Disconnect RH Front Footwell Lamp C266 .
  • Disconnect Floor Console Cup Holder Ambient Lamp C3349 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280C-4   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H14
No REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present).
If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

H12 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280C .
  • Disconnect LH Front Footwell Lamp C209 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280C-4   C209-2

Is the resistance greater than 10,000 ohms?
Yes GO to H13
No REPAIR the circuit.

H13 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280C-4   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to H14

H14 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST I : ONE OR MORE OF THE AMBIENT LIGHTING LIGHT EMITTING DIODES (LEDS) ARE INOPERATIVE OR DO NOT CHANGE COLOR/INTENSITY

Refer to Wiring Diagrams Cell 89 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1465:00 Ambient Lighting Bus 1: No Sub Type Information A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1465:96 Ambient Lighting Bus 1: Component Internal Failure A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1467:00 Ambient Lighting Bus 3: No Sub Type Information A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.
BCM B1467:96 Ambient Lighting Bus 3: Component Internal Failure A continuous memory DTC that sets when the BCM detects a fault on an ambient lighting LIN circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Ambient lighting LED
  • BCM
I1 CHECK THE AMBIENT LIGHTING LIGHT EMITTING DIODES (LEDS)
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS position.
  • Observe the operation of all the ambient lighting Light Emitting Diodes (LEDs).

Are all the front door, floor console and footwell ambient lighting Light Emitting Diodes (LEDs) inoperative?
Yes GO to Pinpoint Test H
No GO to I2

I2 CHECK FOR VOLTAGE TO THE LED (LIGHT EMITTING DIODE)
  • Ignition OFF.
  • Disconnect Inoperative ambient lighting LED .
  • Ignition ON.
  • Place the headlamp switch in the PARKLAMPS position.
  • Measure:
    Click to display connectors

      Floor Console Cup Holder Ambient Lamp


    Positive Lead Measurement / Action Negative Lead
      C3349-1   Ground

    Click to display connectors

      LH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C209-1   Ground

    Click to display connectors

      RH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C266-1   Ground

    Click to display connectors

      LH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C573-1   Ground

    Click to display connectors

      RH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C649-1   Ground

    Click to display connectors

      LH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C737-1   Ground

    Click to display connectors

      RH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C837-1   Ground

Is the voltage greater than 11 volts?
Yes GO to I3
No REPAIR the LED voltage supply circuit in question.

I3 CHECK THE LED (LIGHT EMITTING DIODE) GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Floor Console Cup Holder Ambient Lamp


    Positive Lead Measurement / Action Negative Lead
      C3349-1   C3349-3

    Click to display connectors

      LH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C209-1   C209-3

    Click to display connectors

      RH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C266-1   C266-3

    Click to display connectors

      LH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C573-1   C573-3

    Click to display connectors

      RH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C649-1   C649-3

    Click to display connectors

      LH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C737-1   C737-3

    Click to display connectors

      RH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C837-1   C837-3

Is the voltage greater than 11 volts?
Yes GO to I4
No REPAIR the ground circuit in question.

I4 CHECK THE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect BCM C2280E (Door Light Emitting Diodes (LEDs)).
  • Disconnect BCM C2280B (Front Footwell and Cup Holder Light Emitting Diodes (LEDs)).
  • Measure:
    Click to display connectors

      Floor Console Cup Holder Ambient Lamp


    Positive Lead Measurement / Action Negative Lead
      C3349-2   C2280B-13

    Click to display connectors

      LH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C209-2   C2280B-13

    Click to display connectors

      RH Front Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C266-2   C2280B-13

    Click to display connectors

      LH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C573-2   C2280E-38

    Click to display connectors

      RH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C649-2   C2280E-38

    Click to display connectors

      LH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C737-2   C2280E-38

    Click to display connectors

      RH Rear Door LED


    Positive Lead Measurement / Action Negative Lead
      C837-2   C2280E-38

Is the resistance less than 3 ohms?
Yes INSTALL a new ambient lighting LED in question.
No REPAIR the circuit.

PINPOINT TEST J : THE COURTESY LAMPS DO NOT ILLUMINATE WITH THE LIFTGATE OPEN

Refer to Wiring Diagrams Cell 109 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1306:01 Liftgate Ajar Switch: General Electrical Failure An on-demand DTC that sets when the BCM detects a fault on the liftgate ajar circuit.
RGTM B1306:11 Liftgate Ajar Switch: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the RGTM detects a short to ground on the liftgate ajar output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Liftgate latch
  • RGTM
  • BCM
J1 CHECK THE COURTESY LAMP OPERATION FROM ANY DOOR
  • Ignition OFF.
  • Open any door and observe the courtesy lamps.

Do the courtesy lamps illuminate?
Yes GO to J2
No GO to Pinpoint Test A

J2 CHECK THE RGTM (REAR GATE TRUNK MODULE) OR THE LIFTGATE LATCH
  • Disconnect Liftgate Latch C457 (manual liftgate).
  • Disconnect RGTM C4174A (power liftgate).

Do the courtesy lamps illuminate?
Yes If equipped with a manual liftgate, INSTALL a new liftgate latch.
REFER to: Liftgate Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). If equipped with a power liftgate, GO to J4
No GO to J3

J3 CHECK THE LIFTGATE AJAR INPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280E .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280E-34   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to J5
No REPAIR the circuit.

J4 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) OPERATION
  • Disconnect and inspect all RGTM connectors and related in-line connectors.
  • 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 connectors and 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 RGTM.
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. CLEAR the Diagnostic Trouble Codes (DTCs).

J5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and related in-line connectors.
  • 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 BCM connectors and 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 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. CLEAR the Diagnostic Trouble Codes (DTCs).


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