Ford Escape Quiz
Electrical

Diagnosis and Testing - Interior Lighting

In this manual: Electrical
General Information — 26Chassis — 160Powertrain — 323Electrical — 356Body and Paint — 290
~46min read

Diagnostic Trouble Code (DTC) Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Module Trouble Code Description Action
BCM B1175:01 Driver Door Ajar Switch: General Electrical Failure GO to Pinpoint Test A
BCM B1175:01 Driver 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 Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test C
BCM B1306:01 Rear Door Ajar Switch: General Electrical Failure GO to Pinpoint Test I
BCM B1313:11 Interior Lamp Output: Short to Ground GO to Pinpoint Test B
BCM B1313:15 Interior Lamp Output: Short to Battery or Open Circuit GO to Pinpoint Test B
BCM B1313:15 Interior Lamp Output: Short to Battery or Open Circuit GO to Pinpoint Test D
BCM B145K:11 Exterior Lamp Power Supply Output: Short to Ground GO to Pinpoint Test G
BCM B145K:15 Exterior Lamp Power Supply Output: Short to Battery or Open Circuit GO to Pinpoint Test G
BCM B1465:00 Ambient Lighting Bus 1: No Subtype Information GO to Pinpoint Test G
BCM B1465:00 Ambient Lighting Bus 1: No Subtype Information GO to Pinpoint Test H
BCM B1465:96 Ambient Lighting Bus 1: Internal Component Failure GO to Pinpoint Test G
BCM B1465:96 Ambient Lighting Bus 1: Internal Component Failure GO to Pinpoint Test H
BCM B1467:00 Ambient Lighting Bus 3: No Subtype Information GO to Pinpoint Test G
BCM B1467:00 Ambient Lighting Bus 3: No Subtype Information GO to Pinpoint Test H
BCM B1467:96 Ambient Lighting Bus 3: Internal Component Failure GO to Pinpoint Test G
BCM B1467:96 Ambient Lighting Bus 3: Internal Component Failure GO to Pinpoint Test H
BCM B14AA:11 Courtesy Lamp Request Output: Short to Ground GO to Pinpoint Test E
BCM B14AA: 15 Courtesy Lamp Request Output: Short to Battery or Open Circuit GO to Pinpoint Test E
BCM B153K:11 Output Color Ambient Light: Circuit Short to Ground GO to Pinpoint Test G
BCM B153K: 15 Output Color Ambient Light: Short to Battery or Open Circuit GO to Pinpoint Test G
RKE B1306:11 Liftgate Ajar Switch: Short to Ground GO to Pinpoint Test I
RKE B1306:12 Rear Door Ajar Switch: Short to Battery GO to Pinpoint Test C

Global Customer Symptom Codes (GCSC) Table

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
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 > Remains 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 Lamp > Stays On GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Dome Lamp > Stays On GO to Pinpoint Test D
Lighting/Glass/Vision > Interior Lighting > Dome Lamp > Stays On GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Inoperative GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Inoperative GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Check GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Check GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Check GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Stays On GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Trunk Lamp > Stays On GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Vanity Mirror Lamp > Inoperative GO to Pinpoint Test E

Symptom Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart: Interior Lighting


Condition Action
Module Does Not Respond to Scan Tool
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
Lamps Do Not Illuminate When Door Is Open GO to Pinpoint Test A
One or More Interior Lamps Inoperative GO to Pinpoint Test B
Lamps Do Not Illuminate When Luggage Compartment Door Is Open GO to Pinpoint Test I
All Lamps Stay On GO to Pinpoint Test C
Interior Lamps Stay On GO to Pinpoint Test D
One or More Courtesy Lamps Inoperative GO to Pinpoint Test E
Battery Saver Does Not Turn Off After Timeout GO to Pinpoint Test F
Ambient Lighting Inoperative or Always On GO to Pinpoint Test G
One or More Ambient Lighting Light-Emitting Diode (LED) Sources Inoperative or Do Not Change Intensity GO to Pinpoint Test H

Pinpoint Tests


DIAGNOSTIC TEST A: DOME LAMPS DO NOT ILLUMINATE WITH DOOR OPEN

For wiring diagrams and connector information, refer to Wiring Diagrams Cell 117.

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1175:01 Driver Door Ajar Switch: General Electrical Failure On-demand Diagnostic Trouble Code (DTC) that is set when the BCM detects a malfunction in the left front door ajar switch circuit.
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the right front door ajar switch circuit.
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the left rear door ajar switch circuit.
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the right rear door ajar switch circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Door Latch
  • BCM
A1 CHECK THE DOOR AJAR SWITCH OPERATION
  • Disconnect the suspect door latch.

Does the indicator illuminate?
Yes For the 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 the 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 the C2280F connector.
  • Disconnect GSM C3532 (for the left front door ajar switch).
  • Action:
    Click to display the connectors

    Left Front Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C526A-4 Ground

    Click to display the connectors

    Right Front Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C609-3 Ground

    Click to display the connectors

    Left Rear Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C750-7 Ground

    Click to display the connectors

    Right Rear Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C850-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to A3
No REPAIR the circuit.
A3 CHECK THE BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST B: ONE OR MORE INTERIOR LAMPS DO NOT OPERATE

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1313:11 Interior Lamp Output: Short to Ground Continuous memory and on-demand DTC that is set when the BCM detects a short to ground in the interior lighting output circuit.
BCM B1313:15 Interior Lamp Output: Short to Battery or Open Circuit Continuous memory and on-demand DTC that is set when the BCM detects an open or short to voltage in the interior lighting output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Courtesy Lamp
  • BCM
B1 CHECK THE OPERATION OF ALL COURTESY LAMPS
  • Turn the interior lamp switch to the center AUTO position.
  • Open the door and observe the courtesy lamps.

Are all courtesy lamps inoperative?
Yes GO to Pinpoint Test A
No If only the front courtesy lamp is inoperative, INSTALL a new overhead console.
REFER TO: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). If all overhead courtesy lamps and the luggage/cargo lamp are inoperative, GO to B2.
If one overhead courtesy, luggage or cargo lamp is inoperative, GO to B6.
If all rear courtesy, luggage and cargo lamps are inoperative, GO to B8.
B2 CHECK THE VOLTAGE AT THE FRONT COURTESY LAMP
  • Close the door.
  • Disconnect the front courtesy lamp C928.
  • The ignition is on.
  • Open the door.
  • Action:
    Click to display the 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 THE VOLTAGE AT THE FRONT COURTESY LAMP
  • Using a 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).
  • Action:
    Click to display the 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) LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect the C2280F connector.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-3 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to B5
No REPAIR the circuit. After the repair:
If no diagnostic trouble codes (DTCs) are present, CHECK the system for normal operation.
If DTC U1000:00 is present, CLEAR the 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 DTCs have been resolved.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
B5 CHECK THE BCM (BODY CONTROL MODULE) LAMP OUTPUT CIRCUIT FOR AN OPEN
  • Action:
    Click to display the 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 THE VOLTAGE AT THE REAR COURTESY LAMP
  • Close the door.
  • Disconnect the inoperative left rear courtesy lamp C965.
  • Disconnect the inoperative right rear courtesy lamp C966.
  • Disconnect the inoperative luggage compartment lamp C4198.
  • Disconnect the inoperative cargo lamp C4049.
  • The ignition is on.
  • Action:
    Click to display the connectors

    Left Rear Dome Lamp


    Positive lead Measurement/Action Negative lead
    C965-3 Ground

    Click to display the connectors

    Right Rear Dome Lamp


    Positive lead Measurement/Action Negative lead
    C966-3 Ground

    Click to display the connectors

    Luggage Compartment Lamp


    Positive lead Measurement/Action Negative lead
    C4198-1 Ground

    Click to display the 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
  • Action:
    Click to display the connectors

    Left Rear Dome Lamp


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

    Click to display the connectors

    Right Rear Dome Lamp


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

    Click to display the connectors

    Luggage Compartment Lamp


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

    Click to display the 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 COURTESY LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the front courtesy lamp C928.
  • Disconnect the left rear courtesy lamp C965.
  • Disconnect the right rear courtesy lamp C966.
  • Disconnect the luggage compartment lamp C4198.
  • Disconnect cargo lamp C4049.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-2 Ground

Is there voltage present?
Yes REPAIR the circuit.
No GO to B9
B9 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Action:
    Click to display the connectors

    Left Rear Dome Lamp


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

    Click to display the connectors

    Right Rear Dome Lamp


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

    Click to display the connectors

    Luggage Compartment Lamp


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

    Click to display the 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.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-2 Ground

Is the resistance greater than 10000 Ohms?
Yes If all the rear courtesy, 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 courtesy, luggage or cargo lamp is inoperative, INSTALL a new lamp.
No REPAIR the circuit.
B11 CHECK THE BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST C: ALL DOME LAMPS REMAIN ON CONTINUOUSLY

For wiring diagrams and connector information, refer to Wiring Diagrams Cell 117.

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1175:01 Driver Door Ajar Switch: General Electrical Failure On-demand Diagnostic Trouble Code (DTC) that is set when the BCM detects a malfunction in the left front door ajar switch circuit.
BCM B1176:01 Passenger Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the right front door ajar switch circuit.
BCM B11C0:01 Driver Side Rear Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the left rear door ajar switch circuit.
BCM B11C1:01 Passenger Side Rear Door Ajar Switch: General Electrical Failure On-demand DTC that is set when the BCM detects a malfunction in the right rear door ajar switch circuit.
BCM B1306:01 Rear Door Ajar Switch: General Electrical Failure Continuous memory and on-demand DTC that sets when the BCM detects a fault in the liftgate ajar switch circuit.
RGTM B1306:12 Rear Door Ajar Switch: Short to Battery Continuous memory and on-demand DTC that sets when the RGTM detects a short to voltage in the liftgate ajar switch output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Ajar Switch
  • BCM
C1 CHECK THE DOOR AJAR SWITCH PARAMETER IDENTIFICATION (PIDS)
  • The ignition is on.
  • Using the diagnostic scan tool, view the BCM parameter identification (PID) data.
  • Monitor the following BCM parameter identifications (PIDs) while opening and closing all doors and the 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 match the door and liftgate positions?
Yes GO to Pinpoint Test D
No GO to C2
C2 BYPASS THE SUSPECTED DOOR LATCH
  • Disconnect the suspect door latch.
  • Install the fused jumper wire:
    Click to display connectors

    Left Front Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C526A-4 C526A-3

    Click to display the connectors

    Right Front Door Ajar Switch


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

    Click to display the connectors

    Left Rear Door Ajar Switch


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

    Click to display the connectors

    Right Rear Door Ajar Switch


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

    Click to display the connectors

    Liftgate latch (without power liftgate)


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

    Click to display the connectors

    Liftgate ajar switch (with power liftgate)


    Positive lead Measurement/Action Negative lead
    C4174A-21 C4174A-14
  • Using the diagnostic scan tool, view the BCM parameter identification (PID) data.
  • Monitor the following BCM parameter identifications (PIDs) while opening and closing all doors and the 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 that the liftgate or the door in question is closed?
Yes REMOVE the fused jumper wire.
For the 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 the 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 rear liftgate, INSTALL a new manual rear liftgate latch.
REFER TO: Rear Liftgate Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). To open the power liftgate, GO to C5.
No REMOVE the fused jumper wire.
To open the power rear door, GO to C4.
For all others, GO to C3.
C3 BYPASS THE DOOR LATCH GROUND CIRCUIT
  • Install the fused jumper wire:
    Click to display connectors

    Left Front Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C526A-4 Ground

    Click to display the connectors

    Right Front Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C609-3 Ground

    Click to display the connectors

    Left Rear Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C750-7 Ground

    Click to display the connectors

    Right Rear Door Ajar Switch


    Positive lead Measurement/Action Negative lead
    C850-2 Ground

    Click to display the connectors

    Liftgate latch (without power liftgate)


    Positive lead Measurement/Action Negative lead
    C4223-1 Ground

    Click to display the 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 doors and the 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 that the liftgate or the door in question is closed?
Yes REMOVE the fused jumper wire. CHECK the ground circuit for an open.
No REMOVE the fused jumper wire. GO to C4.
C4 CHECK THE SUSPECTED DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN
  • Disconnect the C2280F connector.
  • Action:
    Click to display the connectors

    Left Front Door Ajar Switch


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

    Click to display the connectors

    Right Front Door Ajar Switch


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

    Click to display the connectors

    Left Rear Door Ajar Switch


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

    Click to display the connectors

    Right Rear Door Ajar Switch


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

    Click to display the connectors

    Liftgate latch (without power liftgate)


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

    Click to display the 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 faulty door ajar switch input circuit.
C5 CHECK THE RGTM (REAR LIFTGATE MODULE) OPERATION
  • Disconnect and inspect all RGTM connectors and the related inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the RGTM connectors and the related inline connectors. Make sure they are installed and locked 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, STOP this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RGTM. REFER TO: Rear Liftgate Module (RGTM) (501-03 Body Locks, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
C6 CHECK THE BCM (BODY CONTROL MODULE) FOR PROPER OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST D: INTERIOR LAMPS REMAIN ON CONTINUOUSLY

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1313:15 Interior Lamp Output: Short to Battery or Open Circuit Continuous memory and on-demand DTC that is set when the BCM detects an open or short to voltage in the interior lighting output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Courtesy Lamp
  • BCM
D1 CHECK THE DOOR AJAR SWITCH PARAMETER IDENTIFICATION (PIDS)
  • The ignition is on.
  • Using the diagnostic tool, monitor the BCM parameter identifications (PIDs).
  • Monitor the following BCM parameter identifications (PIDs) while opening and closing all doors and the 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 match the door positions?
Yes GO to D2
No GO to Pinpoint Test C
D2 BCM (BODY CONTROL MODULE) ISOLATION
  • Ignition OFF.
  • Disconnect the C2280F connector.
  • The ignition is on.

Do the courtesy lamps remain on?
Yes REPAIR the circuit for a short to voltage.
For the front courtesy lamp only, INSTALL a new overhead console.
REFER TO: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For the rear courtesy and cargo lamps only, GO to D3.
No GO to D6
D3 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the front courtesy lamp C928.
  • Disconnect the left rear courtesy lamp C965.
  • Disconnect the right rear courtesy lamp C966.
  • Disconnect the luggage compartment lamp C4198.
  • Disconnect cargo lamp C4049.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-2 Ground

Is there voltage present?
Yes REPAIR the circuit.
No GO to D4
D4 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    Left Rear Dome Lamp


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

    Click to display the connectors

    Right Rear Dome Lamp


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

    Click to display the connectors

    Luggage Compartment Lamp


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

    Click to display the 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.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-2 Ground

Is the resistance greater than 10000 Ohms?
Yes If all the rear courtesy 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 courtesy lamp is inoperative, INSTALL a new rear courtesy lamp.
No REPAIR the circuit.
D6 CHECK BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST E: ONE OR MORE COURTESY LAMPS DO NOT OPERATE

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B14AA:11 Courtesy Lamp Request Output: Short to Ground Continuous memory and on-demand DTC that sets when the BCM detects a short to ground in the on-demand lighting output circuit.
BCM B14AA:15 Courtesy Lamp Request Output: Short to Battery or Open Circuit Continuous memory and on-demand DTC that sets when the BCM detects an open or a short to voltage in the emergency 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 in good condition.
  • Inspect the bulbs for damage.
E1 CHECK THE DEMAND LAMP OPERATION
  • The ignition is on.
  • Check the operation of the left vanity mirror lamp, right vanity mirror lamp, overhead map lamp, luggage compartment lamp, cargo lamp and media bin lamp.

Do the left vanity mirror lamp, right vanity mirror lamp, overhead map lamp, luggage compartment lamp, cargo lamp and media bin lamp illuminate?
Yes If the vanity mirror lamp is inoperative, GO to E6.
If the overhead map lamp, luggage compartment lamp or cargo lamp is inoperative, GO to E8.
If the media bin lamp is inoperative, GO to E10.
No GO to E2
E2 CHECK THE VOLTAGE AT THE FRONT OVERHEAD MAP LAMP
  • Ignition OFF.
  • Disconnect the front courtesy lamp C928.
  • The ignition is on.
  • Action:
    Click to display the 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 SELF-TEST ON DEMAND AND CHECK THE VOLTAGE AT THE FRONT OVERHEAD MAP LAMP
  • Using a 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).
  • Action:
    Click to display the 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) REQUEST LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the C2280F connector.
  • Disconnect the driver door window switch (with door module) C566.
  • Disconnect Vanity Mirror Lamp LH C907.
  • Disconnect Vanity Mirror Lamp RH C906.
  • Disconnect the left rear courtesy lamp C965.
  • Disconnect the right rear courtesy lamp C966.
  • Disconnect the luggage compartment lamp C4198.
  • Disconnect cargo lamp C4049.
  • Disconnect the cargo tray ambient indicator C3510.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C928-1 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to E5
No REPAIR the circuit. After the repair:
If no diagnostic trouble codes (DTCs) are present, CHECK the system for normal operation.
If DTC U1000:00 is present, CLEAR the 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 DTCs have been resolved.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
E5 CHECK THE BCM (BODY CONTROL MODULE) REQUEST LAMP OUTPUT CIRCUIT FOR AN OPEN
  • Action:
    Click to display the 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 the malfunctioning left vanity mirror lamp C907 or right vanity mirror lamp C906.
  • The ignition is on.
  • Action:
    Click to display the connectors

    Vanity Mirror Lamp LH


    Positive lead Measurement/Action Negative lead
    C907-1 Ground

    Click to display the connectors

    Vanity Mirror Lamp RH


    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
  • Action:
    Click to display the connectors

    Vanity Mirror Lamp LH


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

    Click to display the connectors

    Vanity Mirror Lamp RH


    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 FRONT DOME LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect the malfunctioning front dome lamp C928.
  • Disconnect the inoperative left rear courtesy lamp C965.
  • Disconnect the inoperative right rear courtesy lamp C966.
  • Disconnect the inoperative luggage compartment lamp C4198.
  • Disconnect the inoperative cargo lamp C4049.
  • The ignition is on.
  • Action:
    Click to display the connectors

    Front courtesy lamp


    Positive lead Measurement/Action Negative lead
    C928-1 Ground

    Click to display the connectors

    Left Rear Dome Lamp


    Positive lead Measurement/Action Negative lead
    C965-3 Ground

    Click to display the connectors

    Right Rear Dome Lamp


    Positive lead Measurement/Action Negative lead
    C966-3 Ground

    Click to display the connectors

    Luggage Compartment Lamp


    Positive lead Measurement/Action Negative lead
    C4198-1 Ground

    Click to display the 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 FRONT DOME LAMP GROUND CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    Front courtesy lamp


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

    Click to display the connectors

    Left Rear Dome Lamp


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

    Click to display the connectors

    Right Rear Dome Lamp


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

    Click to display the connectors

    Luggage Compartment Lamp


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

    Click to display the connectors

    Cargo Lamp


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

Is the voltage greater than 11 volts?
Yes If the front dome lamp is inoperative, INSTALL a new overhead console.
REFER TO: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For all other dome lamps, INSTALL a new dome lamp.
No REPAIR the circuit.
E10 CHECK THE CARGO LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect the cargo tray ambient indicator C3510.
  • The ignition is on.
  • Action:
    Click to display the connectors

    Media Bin Ambient Indicator


    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 CARGO LAMP GROUND CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    Media Bin Ambient Indicator


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

Is the voltage greater than 11 volts?
Yes INSTALL a new LED cargo tray ambient indicator.
No REPAIR the circuit.
E12 CHECK THE BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST F: BATTERY SAVER DOES NOT DEACTIVATE AFTER TIMEOUT

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

Normal Operation and Fault Symptoms

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 REQUEST LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the C2280F connector.
  • Turn on any request lamp (map or vanity mirror).

Is the request lamp on?
Yes REPAIR the circuit.
No GO to F2
F2 CHECK THE BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST G: AMBIENT LIGHTING DOES NOT OPERATE OR IS ALWAYS ON

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B145C: 11 Exterior Lamp Power Supply Output: Short to Ground Continuous memory and on-demand DTC that is set when the BCM detects a fault. Short to ground from the ambient lighting module power supply output circuit.
BCM B145C: 15 Exterior Lamp Power Supply Output: Short to Battery or Open Circuit Continuous memory and on-demand DTC that is set when the BCM detects a fault. Open or short to voltage from the ambient lighting module power supply output circuit.
BCM B1465:00 Ambient Lighting Bus 1: No Subtype Information Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1465:96 Ambient Lighting Bus 1: Internal Component Failure Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1467:00 Ambient Lighting Bus 3: No Subtype Information Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1467:96 Ambient Lighting Bus 3: Internal Component Failure Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B153C: 11 Output Color Ambient Light: Circuit Short to Ground Continuous memory and on-demand DTC that is set when the BCM detects a fault. Short to ground from the ambient lighting module power supply output circuit.
BCM B153C: 15 Output Color Ambient Light: Short to Battery or Open Circuit Continuous memory and on-demand DTC that is set when the BCM detects a fault. Open or short to voltage from the ambient lighting module power supply output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • FDIM
  • BCM
G1 CHECK THE FDIM (FRONT DISPLAY INTERFACE MODULE) AUDIO CONTROL
  • The ignition is on.
  • Check the audio system operation using the FDIM controls (touchscreen).

Does the audio system operate correctly from the touchscreen?
Yes GO to G2
No
REFER TO: Information and Entertainment System (415-00 Information and Entertainment System, General Information, Diagnosis and Testing).
G2 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a scan tool, perform the BCM self-test.

Are 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 LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the C2280F connector.
  • The ignition is on.
  • Action:
    Click to display the 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 LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect the left front door LED C574.
  • Action:
    Click to display the 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 LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect the right front door LED C649.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C574-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to G6
No REPAIR the circuit. After the repair:
If no diagnostic trouble codes (DTCs) are present, CHECK the system for normal operation.
If DTC U1000:00 is present, CLEAR the 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 DTCs have been resolved.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
G6 CHECK THE DOOR LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO THE VOLTAGE SUPPLY CIRCUIT
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280F-58 C2280F-4

Is the resistance greater than 10000 Ohms?
Yes GO to G14
No REPAIR the circuit.
G7 CHECK THE FRONT FOOTWELL AND CONSOLE LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect C2280D.
  • Disconnect the C2280F connector.
  • The ignition is on.
  • Action:
    Click to display the 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 LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect the left footwell lamp C209.
  • Action:
    Click to display the 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 LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Disconnect the right footwell lamp C266.
  • Ambient lamp C3509 for the floor console storage compartment.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280D-31 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to G10
No REPAIR the circuit. After the repair:
If no diagnostic trouble codes (DTCs) are present, CHECK the system for normal operation.
If DTC U1000:00 is present, CLEAR the 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 DTCs have been resolved.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
G10 CHECK THE FRONT FOOTWELL AND CONSOLE LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO THE VOLTAGE SUPPLY CIRCUIT
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280D-31 C2280C-4

Is the resistance greater than 10000 Ohms?
Yes GO to G14
No REPAIR the circuit.
G11 CHECK THE AMBIENT LAMP VOLTAGE CIRCUIT FOR A SHORT TO GROUND
  • Disconnect the C2280F connector.
  • Disconnect the left front door LED C574.
  • Disconnect the right front door LED C649.
  • Disconnect the left footwell lamp C209.
  • Disconnect the right footwell lamp C266.
  • Ambient lamp C3509 for the floor console storage compartment.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280F-4 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to G14
No REPAIR the circuit. After the repair:
If no diagnostic trouble codes (DTCs) are present, CHECK the system for normal operation.
If DTC U1000:00 is present, CLEAR the 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 DTCs have been resolved.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
G12 CHECK THE AMBIENT LAMP VOLTAGE CIRCUIT FOR AN OPEN
  • Disconnect the C2280F connector.
  • Disconnect the left footwell lamp C209.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280F-4 C209-2

Is the resistance greater than 10000 Ohms?
Yes GO to G13
No REPAIR the circuit.
G13 CHECK THE AMBIENT LAMP VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280F-4 Ground

Is voltage present?
Yes REPAIR the circuit.
No GO to G14
G14 CHECK THE BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
DIAGNOSTIC TEST H: ONE OR MORE AMBIENT LIGHTING LEDS DO NOT OPERATE OR DO NOT CHANGE INTENSITY

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1465:00 Ambient Lighting Bus 1: No Subtype Information Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1465:96 Ambient Lighting Bus 1: Internal Component Failure Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1467:00 Ambient Lighting Bus 3: No Subtype Information Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.
BCM B1467:96 Ambient Lighting Bus 3: Internal Component Failure Continuous memory DTC that is set when the BCM detects a fault in the ambient lighting LIN circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Ambient LED Lighting
  • BCM
H1 CHECK THE AMBIENT LIGHTING LEDS (LIGHT EMITTING DIODES)
  • The ignition is on.
  • Turn the headlamp switch to the PARKING LAMPS position.
  • Observe the operation of all ambient lighting LEDs (light emitting diodes).

Do all front door, floor console and footwell ambient lighting Light Emitting Diodes (LEDs) fail to operate?
Yes GO to Pinpoint Test G
No GO to H2
H2 CHECK THE LED (LIGHT EMITTING DIODE) VOLTAGE
  • Ignition OFF.
  • Disconnect the malfunctioning ambient lighting LED.
  • The ignition is on.
  • Turn the headlamp switch to the PARKING LAMPS position.
  • Action:
    Click to display the connectors

    Floor console storage compartment ambient lamp


    Positive lead Measurement/Action Negative lead
    C3509-1 Ground

    Click to display the connectors

    Left footwell lamp


    Positive lead Measurement/Action Negative lead
    C209-1 Ground

    Click to display the connectors

    Right footwell lamp


    Positive lead Measurement/Action Negative lead
    C266-1 Ground

    Click to display the connectors

    Left front door LED


    Positive lead Measurement/Action Negative lead
    C5734-1 Ground

    Click to display the connectors

    Right 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 malfunctioning LED power supply circuit.
H3 CHECK THE LED (LIGHT EMITTING DIODE) GROUND CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    Floor console storage compartment ambient lamp


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

    Click to display the connectors

    Left front footwell lamp


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

    Click to display the connectors

    Right front footwell lamp


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

    Click to display the connectors

    Left front door LED


    Positive lead Measurement/Action Negative lead
    C574-1 C574-3

    Click to display the connectors

    Right 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 malfunctioning ground circuit.
H4 CHECK THE AMBIENT LAMP LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Turn the headlamp switch to the OFF position.
  • Disconnect the C2280F (Door Light Emitting Diodes (LED)).
  • Disconnect the C2280D (Footwell and Center Console Light Emitting Diodes (LEDs)).
  • Action:
    Click to display the connectors

    Floor console storage compartment ambient lamp


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

    Click to display the connectors

    Left footwell lamp


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

    Click to display the connectors

    Right footwell lamp


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

    Click to display the connectors

    Left front door LED


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

    Click to display the connectors

    Right 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.
No REPAIR the circuit.
DIAGNOSTIC TEST I: INTERIOR LAMPS DO NOT ILLUMINATE WITH REAR LIFTGATE OPEN

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

Normal Operation and Fault Symptoms

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

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
BCM B1306:01 Rear Door Ajar Switch: General Electrical Failure Continuous memory and on-demand DTC that sets when the BCM detects a fault in the liftgate ajar switch circuit.
BCM B1306:11 Liftgate Ajar Switch: Short to Ground Continuous memory and on-demand DTC that is set when the RGTM detects a short to ground in the output circuit of the ajar liftgate.

Possible Sources

  • Wiring, Terminals or Connectors
  • Liftgate latch
  • RKE
  • BCM
I1 CHECK THE OPERATION OF ANY DOOR LAMP
  • Ignition OFF.
  • Open any door and observe the courtesy lamps.

Does the indicator illuminate?
Yes GO to I2.
No GO to Pinpoint Test A
I2 CHECK THE RGTM (REAR GATE TAILGATE MODULE) OR THE LIFTGATE LATCH
  • Disconnect the rear door latch C457 (manual liftgate).
  • Disconnect the RGTM C4174A (power liftgate).

Does the indicator illuminate?
Yes If equipped with a manual liftgate, INSTALL a new rear door 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 AJAR LIFTGATE INPUT CIRCUIT FOR A SHORT TO GROUND
  • Disconnect the C2280F connector.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C2280F-16 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to I5
No REPAIR the circuit.
I4 CHECK THE RGTM (REAR GATE TAILGATE MODULE) OPERATION
  • Disconnect and inspect all RGTM connectors and the related inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the RGTM connectors and the related inline connectors. Make sure they are installed and locked 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, STOP this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RGTM. REFER TO: Rear Liftgate Module (RGTM) (501-03 Body Locks, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).
I5 CHECK BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors and the corresponding inline connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Connect the BCM connectors and the corresponding inline connectors. Make sure they are installed and locked 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 condition, STOP this test and FOLLOW the service article instructions. If no service article resolves this condition, INSTALL a new BCM.
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal concerns. CLEAR the diagnostic trouble codes (DTCs).

Test yourself

A quick Ford Escape quiz: every answer comes with an explanation and a link to the manual page.