Ford Escape Manuals
Ford Escape 2020-2025 Service Manual / Electrical / Lighting / Interior Lighting / Diagnosis and Testing - Interior Lighting

Ford Escape: 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).


Module DTC Description Action
BCM B1175:01 Drivers Door Ajar Switch: General Electrical Failure GO to Pinpoint Test A
BCM B1175:01 Drivers Door Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure GO to Pinpoint Test A
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test A
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test A
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B1306:01 Liftgate Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B1306:01 Liftgate Ajar Switch: General Electrical Failure GO to Pinpoint Test I
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 GO to Pinpoint Test B
BCM B1313:15 Interior Lighting Output: Circuit Short To Battery Or Open GO to Pinpoint Test D
BCM B145C:11 Ambient Lighting Power Supply Output: Circuit Short To Ground GO to Pinpoint Test G
BCM B145C:15 Ambient Lighting Power Supply Output: Circuit Short To Battery Or Open GO to Pinpoint Test G
BCM B1465:00 Ambient Lighting Bus 1: No Sub Type Information GO to Pinpoint Test G
BCM B1465:00 Ambient Lighting Bus 1: No Sub Type Information GO to Pinpoint Test H
BCM B1465:96 Ambient Lighting Bus 1: Component Internal Failure GO to Pinpoint Test G
BCM B1465:96 Ambient Lighting Bus 1: Component Internal Failure GO to Pinpoint Test H
BCM B1467:00 Ambient Lighting Bus 3: No Sub Type Information GO to Pinpoint Test G
BCM B1467:00 Ambient Lighting Bus 3: No Sub Type Information GO to Pinpoint Test H
BCM B1467:96 Ambient Lighting Bus 3: Component Internal Failure GO to Pinpoint Test G
BCM B1467:96 Ambient Lighting Bus 3: Component Internal Failure GO to Pinpoint Test H
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 G
BCM B153C:15 Color Ambient Light 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 I
RGTM B1306:12 Liftgate Ajar Switch: Circuit Short To Battery GO to Pinpoint Test C

Global Customer Symptom Code (GCSC) 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).


Symptom Action
Lighting/Glass/Vision > Interior Lighting > Ambient > Inoperative GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Ambient > Inoperative GO to Pinpoint Test H
Lighting/Glass/Vision > Interior Lighting > Ambient > Control GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Ambient > Stays On GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Dome > Inoperative GO to Pinpoint Test A
Lighting/Glass/Vision > Interior Lighting > Dome > Inoperative GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Dome > Inoperative GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Dome > Control GO to Pinpoint Test A
Lighting/Glass/Vision > Interior Lighting > Dome > Control GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Dome > Control GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Dome > Control GO to Pinpoint Test D
Lighting/Glass/Vision > Interior Lighting > Dome > Control GO to Pinpoint Test F
Lighting/Glass/Vision > Interior Lighting > Dome > Stays On GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Dome > Stays On GO to Pinpoint Test D
Lighting/Glass/Vision > Interior Lighting > Dome > Stays On GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Inoperative GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Inoperative GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Control GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Control GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Control GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Stays On GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Stays On GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Vanity Mirror > Inoperative GO to Pinpoint Test E

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 Actions
A module does not respond to the scan tool  
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The courtesy lamps do not illuminate with a door open   GO to Pinpoint Test A
One or more interior courtesy lamps are inoperative   GO to Pinpoint Test B
The courtesy lamps do not illuminate with the liftgate open   GO to Pinpoint Test I
All the courtesy lamps stay on continuously   GO to Pinpoint Test C
The interior courtesy lamps stay on continuously   GO to Pinpoint Test D
One or more demand lamps are inoperative   GO to Pinpoint Test E
The battery saver does not deactivate after time-out   GO to Pinpoint Test F
The ambient lighting is inoperative or always on   GO to Pinpoint Test G
One or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative or do not change intensity   GO to Pinpoint Test H

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
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 C2280F .
  • Disconnect GSM C3532 (for LH front door ajar switch).
  • Measure:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C526A-4   Ground

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C609-3   Ground

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C750-7   Ground

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C850-2   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 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
B1 CHECK THE OPERATION OF ALL THE INTERIOR COURTESY LAMPS
  • Turn the interior lamp switch to the center AUTO position.
  • 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 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 B2
If a single overhead interior, luggage or cargo lamp is inoperative, GO to B6
If all of the rear interior, luggage and cargo lamps are inoperative, GO to B8

B2 CHECK FOR VOLTAGE TO THE FRONT INTERIOR LAMP
  • Close the door.
  • Disconnect Front Interior Lamp C928 .
  • Ignition ON.
  • Open a door.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-3   Ground

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

B3 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
      C928-3   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 B4

B4 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280F .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B5
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).

B5 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-3   C2280F-17

Is the resistance less than 3 ohms?
Yes GO to B11
No REPAIR the circuit.

B6 CHECK FOR VOLTAGE TO THE REAR COURTESY LAMP
  • Close the door.
  • Disconnect Inoperative LH Rear Interior Lamp C965 .
  • Disconnect Inoperative RH Rear Interior Lamp C966 .
  • Disconnect Inoperative Luggage Compartment Lamp C4198 .
  • Disconnect Inoperative Cargo Lamp C4049 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-3   Ground

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-3   Ground

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-1   Ground

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-1   Ground

Is the voltage greater than 11 volts?
Yes GO to B7
No REPAIR the circuit.

B7 CHECK THE REAR COURTESY LAMP GROUND CIRCUIT
  • Measure:
    Click to display connectors

      LH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-3   C965-1

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-3   C966-1

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-1   C4198-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-1   C4049-3

Is the voltage greater than 11 volts?
Yes GO to B8
No REPAIR the circuit.

B8 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect Front Interior Lamp C928 .
  • Disconnect LH Rear Interior Lamp C965 .
  • Disconnect RH Rear Interior Lamp C966 .
  • Disconnect Luggage Compartment Lamp C4198 .
  • Disconnect Cargo Lamp C4049 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to B9

B9 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors

      LH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-2   C928-2

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-2   C928-2

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-2   C928-2

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-2   C928-2

Is the resistance less than 3 ohms?
Yes GO to B10
No REPAIR the circuit.

B10 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-2   Ground

Is the resistance greater than 10,000 ohms?
Yes If all rear interior, luggage 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, luggage or cargo lamp is inoperative, INSTALL a new lamp.
No REPAIR the circuit.

B11 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
  • 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 GO to Pinpoint Test D
No GO to C2

C2 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
      C526A-4   C526A-3

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C609-3   C609-4

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C750-7   C750-6

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C850-2   C850-3

    Click to display connectors

      Luggage Compartment Lid Latch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4223-1   C4223-5

    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 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). 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 C5
No REMOVE the fused jumper wire.
For the power liftgate, GO to C4
For all others, GO to C3

C3 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
      C526A-4   Ground

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C609-3   Ground

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C750-7   Ground

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C850-2   Ground

    Click to display connectors

      Luggage Compartment Lid Latch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4223-1   Ground

    Click to display connectors

      Liftgate Ajar Switch (with power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4174A-21   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 C4

C4 CHECK THE SUSPECT DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280F .
  • Measure:
    Click to display connectors

      LH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C526A-4   C2280F-29

    Click to display connectors

      RH Front Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C609-3   C2280F-32

    Click to display connectors

      LH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C750-7   C2280F-33

    Click to display connectors

      RH Rear Door Ajar Switch


    Positive Lead Measurement / Action Negative Lead
      C850-2   C2280F-34

    Click to display connectors

      Luggage Compartment Lid Latch (without power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4223-1   C2280F-16

    Click to display connectors

      Liftgate Ajar Switch (with power liftgate)


    Positive Lead Measurement / Action Negative Lead
      C4174A-21   C2280F-16

Is the resistance less than 3 ohms?
Yes GO to C6
No REPAIR the door ajar input circuit in question.

C5 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).

C6 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.

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 C2280F .
  • Ignition ON.

Do the interior courtesy lamps continue to illuminate?
Yes 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 Front Interior Lamp C928 .
  • Disconnect LH Rear Interior Lamp C965 .
  • Disconnect RH Rear Interior Lamp C966 .
  • Disconnect Luggage Compartment Lamp C4198 .
  • Disconnect Cargo Lamp C4049 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-2   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 Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-2   C928-2

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-2   C928-2

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-2   C928-2

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-2   C928-2

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
      C928-2   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, luggage compartment, cargo and media bin lamps.

Does the LH vanity mirror, RH vanity mirror, overhead map, luggage compartment, cargo and media bin lamp illuminate?
Yes If a vanity mirror lamp is inoperative, GO to E6
If an overhead map, luggage compartment or cargo lamp is inoperative, GO to E8
If the media bin lamp is inoperative, GO to E10
No GO to E2

E2 CHECK FOR VOLTAGE TO THE FRONT OVERHEAD MAP LAMP
  • Ignition OFF.
  • Disconnect Front Interior Lamp C928 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-1   Ground

Is the voltage greater than 11 volts?
Yes GO to E8
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
      C928-1   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 C2280F .
  • Disconnect Driver Door Window Control Switch (with door module) C566 .
  • Disconnect LH Vanity Mirror Lamp C907 .
  • Disconnect RH Vanity Mirror Lamp C906 .
  • Disconnect LH Rear Interior Lamp C965 .
  • Disconnect RH Rear Interior Lamp C966 .
  • Disconnect Luggage Compartment Lamp C4198 .
  • Disconnect Cargo Lamp C4049 .
  • Disconnect Media Bin Ambient LED C3510 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C928-1   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
      C928-1   C2280F-72

Is the resistance less than 3 ohms?
Yes GO to E12
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 OVERHEAD INTERIOR LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Inoperative Front Interior Lamp C928 .
  • Disconnect Inoperative LH Rear Interior Lamp C965 .
  • Disconnect Inoperative RH Rear Interior Lamp C966 .
  • Disconnect Inoperative Luggage Compartment Lamp C4198 .
  • Disconnect Inoperative Cargo Lamp C4049 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Front Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C928-1   Ground

    Click to display connectors

      LH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-3   Ground

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-3   Ground

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-1   Ground

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-1   Ground

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

E9 CHECK THE OVERHEAD INTERIOR LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Front Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C928-1   C928-8

    Click to display connectors

      LH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C965-3   C965-1

    Click to display connectors

      RH Rear Interior Lamp


    Positive Lead Measurement / Action Negative Lead
      C966-3   C966-1

    Click to display connectors

      Luggage Compartment Lamp


    Positive Lead Measurement / Action Negative Lead
      C4198-1   C4198-3

    Click to display connectors

      Cargo Lamp


    Positive Lead Measurement / Action Negative Lead
      C4049-1   C4049-3

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 all other interior lamps, INSTALL a new interior lamp.
No REPAIR the circuit.

E10 CHECK THE MEDIA BIN LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Media Bin Ambient LED C3510 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Media Bin Ambient LED


    Positive Lead Measurement / Action Negative Lead
      C3510-1   Ground

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

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

      Media Bin Ambient LED


    Positive Lead Measurement / Action Negative Lead
      C3510-1   C3510-3

Is the voltage greater than 11 volts?
Yes INSTALL a new media bin ambient LED .
No REPAIR the circuit.

E12 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 C2280F .
  • 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: 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
G1 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 G2
No
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).

G2 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 G3
For DTC B1467:00 and B1467:96, GO to G7
For DTC B145C:11 and B153C:11, GO to G11
For DTC B145C:15 and B153C:15, GO to G12
No GO to G14

G3 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280F .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-58   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to G4

G4 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect LH Front Door LED C574 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C574-2   C2280F-58

Is the resistance less than 3 ohms?
Yes GO to G5
No REPAIR the circuit.

G5 CHECK THE DOOR AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect RH Front Door LED C649 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C574-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G6
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).

G6 CHECK THE DOOR 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
      C2280F-58   C2280F-4

Is the resistance greater than 10,000 ohms?
Yes GO to G14
No REPAIR the circuit.

G7 CHECK THE FRONT FOOTWELL AND CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280D .
  • Disconnect BCM C2280F .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280D-31   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to G8

G8 CHECK THE FRONT FOOTWELL AND CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect LH Footwell Lamp C209 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280D-31   C209-2

Is the resistance less than 3 ohms?
Yes GO to G9
No REPAIR the circuit.

G9 CHECK THE FRONT FOOTWELL AND CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect RH Footwell Lamp C266 .
  • Disconnect Floor Console Storage Bin Ambient Lighting Lamp C3509 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280D-31   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G10
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).

G10 CHECK THE FRONT FOOTWELL AND CONSOLE 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
      C2280D-31   C2280C-4

Is the resistance greater than 10,000 ohms?
Yes GO to G14
No REPAIR the circuit.

G11 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280F .
  • Disconnect LH Front Door LED C574 .
  • Disconnect RH Front Door LED C649 .
  • Disconnect LH Footwell Lamp C209 .
  • Disconnect RH Footwell Lamp C266 .
  • Disconnect Floor Console Storage Bin Ambient Lighting Lamp C3509 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-4   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G14
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).

G12 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280F .
  • Disconnect LH Footwell Lamp C209 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-4   C209-2

Is the resistance greater than 10,000 ohms?
Yes GO to G13
No REPAIR the circuit.

G13 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-4   Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to G14

G14 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 H: ONE OR MORE OF THE AMBIENT LIGHTING LIGHT EMITTING DIODES (LEDS) ARE INOPERATIVE OR DO NOT CHANGE 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
H1 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 G
No GO to H2

H2 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 Storage Bin Ambient Lighting Lamp


    Positive Lead Measurement / Action Negative Lead
      C3509-1   Ground

    Click to display connectors

      LH Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C209-1   Ground

    Click to display connectors

      RH 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
      C5734-1   Ground

    Click to display connectors

      RH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C649-1   Ground

Is the voltage greater than 11 volts?
Yes GO to H3
No REPAIR the LED voltage supply circuit in question.

H3 CHECK THE LED (LIGHT EMITTING DIODE) GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      Floor Console Storage Bin Ambient Lighting Lamp


    Positive Lead Measurement / Action Negative Lead
      C3509-1   C3509-3

    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
      C574-1   C574-3

    Click to display connectors

      RH Front Door LED


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

Is the voltage greater than 11 volts?
Yes GO to H4
No REPAIR the ground circuit in question.

H4 CHECK THE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect BCM C2280F (Door Light Emitting Diodes (LEDs)).
  • Disconnect BCM C2280D (Front Footwell and Center Console Light Emitting Diodes (LEDs)).
  • Measure:
    Click to display connectors

      Floor Console Storage Bin Ambient Lighting Lamp


    Positive Lead Measurement / Action Negative Lead
      C3509-2   C2280D-31

    Click to display connectors

      LH Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C209-2   C2280D-31

    Click to display connectors

      RH Footwell Lamp


    Positive Lead Measurement / Action Negative Lead
      C266-2   C2280D-31

    Click to display connectors

      LH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C574-2   C2280F-58

    Click to display connectors

      RH Front Door LED


    Positive Lead Measurement / Action Negative Lead
      C649-2   C2280F-58

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

PINPOINT TEST I: 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
I1 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 I2
No GO to Pinpoint Test A

I2 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 I4
No GO to I3

I3 CHECK THE LIFTGATE AJAR INPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect BCM C2280F .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-16   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to I5
No REPAIR the circuit.

I4 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).

I5 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).


    Description and Operation - Interior Lighting - System Operation and Component Description

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