Lincoln Navigator: Interior Lighting / Interior Lighting. Diagnosis and Testing

Lincoln Navigator 2018-2025 Workshop Manual / Lighting / Interior Lighting / Interior Lighting. Diagnosis and Testing

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 D
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 D
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 D
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 D
BCM	B12C2:11	Puddle Lamp: Circuit Short To Ground	GO to Pinpoint Test C
BCM	B12C2:15	Puddle Lamp: Circuit Short To Battery Or Open	GO to Pinpoint Test C
BCM	B12C2:15	Puddle Lamp: Circuit Short To Battery Or Open	GO to Pinpoint Test E
BCM	B1306:01	Liftgate Ajar Switch: General Electrical Failure	GO to Pinpoint Test B
BCM	B1306:01	Liftgate Ajar Switch: General Electrical Failure	GO to Pinpoint Test D
BCM	B1313:11	Interior Lighting Output: Circuit Short To Ground	GO to Pinpoint Test C
BCM	B1313:15	Interior Lighting Output: Circuit Short To Battery Or Open	GO to Pinpoint Test C
BCM	B1313:15	Interior Lighting Output: Circuit Short To Battery Or Open	GO to Pinpoint Test E
BCM	B145C:11	Ambient Lighting Power Supply Output: Circuit Short To Ground	GO to Pinpoint Test I
BCM	B145C:15	Ambient Lighting Power Supply Output: Circuit Short To Battery Or Open	GO to Pinpoint Test I
BCM	B1465:00	Ambient Lighting Bus 1: No Sub Type Information	GO to Pinpoint Test I
BCM	B1465:00	Ambient Lighting Bus 1: No Sub Type Information	GO to Pinpoint Test J
BCM	B1467:00	Ambient Lighting Bus 3: No Sub Type Information	GO to Pinpoint Test I
BCM	B1467:00	Ambient Lighting Bus 3: No Sub Type Information	GO to Pinpoint Test J
BCM	B14AA:11	Demand Lamp Output: Circuit Short To Ground	GO to Pinpoint Test F
BCM	B14AA:15	Demand Lamp Output: Circuit Short To Battery Or Open	GO to Pinpoint Test F
DDM	B1165:11	Left Front Puddle Lamp Output: Circuit Short To Ground	GO to Pinpoint Test H
DDM	B1165:15	Left Front Puddle Lamp Output: Circuit Short To Battery Or Open	GO to Pinpoint Test H
PDM	B1166:11	Right Front Puddle Lamp Output: Circuit Short To Ground	GO to Pinpoint Test H
PDM	B1166:15	Right Front Puddle Lamp Output: Circuit Short To Battery Or Open	GO to Pinpoint Test H
RBM	B155B:11	Left Power Running Board LEDs: Circuit Short To Ground	GO to Pinpoint Test K
RBM	B155B:12	Left Power Running Board LEDs: Circuit Short To Battery	GO to Pinpoint Test K
RBM	B155B:13	Left Power Running Board LEDs: Circuit Open	GO to Pinpoint Test K
RBM	B155C:11	Right Power Running Board LEDs: Circuit Short To Ground	GO to Pinpoint Test K
RBM	B155C:12	Right Power Running Board LEDs: Circuit Short To Battery	GO to Pinpoint Test K
RBM	B155C:13	Right Power Running Board LEDs: Circuit Open	GO to Pinpoint Test K
RGTM	B1306:11	Liftgate Ajar Switch: Circuit Short To Ground	GO to Pinpoint Test B
RGTM	B1306:11	Liftgate Ajar Switch: Circuit Short To Ground	GO to Pinpoint Test D
RGTM	B1306:12	Liftgate Ajar Switch: Circuit Short To Battery	GO to Pinpoint Test B
RGTM	B1306:12	Liftgate Ajar Switch: Circuit Short To Battery	GO to Pinpoint Test D

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 I
Lighting/Glass/Vision > Interior Lighting > Ambient > Inoperative	GO to Pinpoint Test J
Lighting/Glass/Vision > Interior Lighting > Ambient > Control	GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Ambient > Stays On	GO to Pinpoint Test I
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 C
Lighting/Glass/Vision > Interior Lighting > Dome > Inoperative	GO to Pinpoint Test D
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 E
Lighting/Glass/Vision > Interior Lighting > Dome > Control	GO to Pinpoint Test F
Lighting/Glass/Vision > Interior Lighting > Dome > Stays On	GO to Pinpoint Test F
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 C
Lighting/Glass/Vision > Interior Lighting > Luggage Compartment/Cargo Area > Inoperative	GO to Pinpoint Test E
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 > Vanity Mirror > Inoperative	GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Vanity Mirror > Inoperative	GO to Pinpoint Test G
Lighting/Glass/Vision > Exterior Lighting > Puddle > Inoperative	GO to Pinpoint Test H
Lighting/Glass/Vision > Exterior Lighting > Puddle > Inoperative	GO to Pinpoint Test L
Lighting/Glass/Vision > Exterior Lighting > Puddle > Stays On	GO to Pinpoint Test H
Lighting/Glass/Vision > Exterior Lighting > Puddle > Stays On	GO to Pinpoint Test L
Lighting/Glass/Vision > Exterior Lighting > Approach/Welcome > Inoperative	GO to Pinpoint Test H
Lighting/Glass/Vision > Exterior Lighting > Approach/Welcome > Inoperative	GO to Pinpoint Test K
Lighting/Glass/Vision > Exterior Lighting > Approach/Welcome > Stays On	GO to Pinpoint Test H
Lighting/Glass/Vision > Exterior Lighting > Approach/Welcome > Stays On	GO to Pinpoint Test K

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

Symptom Chart

Condition	Possible Sources	Actions
The courtesy lamps do not illuminate with a door open	Refer to the Pinpoint Test	GO to Pinpoint Test A
The courtesy lamps do not illuminate with the liftgate or liftgate glass open	Refer to the Pinpoint Test	GO to Pinpoint Test B
One or more interior courtesy lamps are inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test C
A welcome mat lamp is inoperative or always on	Refer to the Pinpoint Test	GO to Pinpoint Test H
All the courtesy lamps stay on continuously	Refer to the Pinpoint Test	GO to Pinpoint Test D
The interior courtesy lamps stay on continuously	Refer to the Pinpoint Test	GO to Pinpoint Test E
One or more demand lamps are inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test F
The battery saver does not deactivate after time-out	Refer to the Pinpoint Test	GO to Pinpoint Test G
The ambient lighting is inoperative or always on	Refer to the Pinpoint Test	GO to Pinpoint Test I
One or more of the ambient lighting Light Emitting Diodes (LEDs) are inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
A power running board lamp is inoperative or always on	Refer to the Pinpoint Test	GO to Pinpoint Test K
A rear puddle lamp is inoperative or always on	Refer to the Pinpoint Test	GO to Pinpoint Test L

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 OPERATION OF THE COURTESY LAMP FUNCTION FROM THE FRONT/DRIVER INTERIOR LAMP

NOTE: Verify the Door Defeat function has not been enabled before continuing with this step.

Ignition OFF.

Use the courtesy lamp switch to activate the overhead courtesy lamps.

Do the overhead courtesy lamps illuminate?

Yes

GO to A2

No	GO to Pinpoint Test C

A2 CHECK THE DOOR AJAR SWITCH OPERATION

Deactivate the overhead courtesy lamps.

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).

GO to A3

A3 CHECK THE DOOR AJAR SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND

Disconnect BCM C2280E .

Measure:
Click to display connectors
LH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C525-6 Ground

Click to display connectors
RH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C606-1 Ground

Click to display connectors
LH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C750-6 Ground

Click to display connectors
RH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C850-1 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to A4

No	REPAIR the circuit.

A4 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

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: THE COURTESY LAMPS DO NOT ILLUMINATE WITH THE LIFTGATE OR LIFTGATE GLASS 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	An on-demand DTC that sets when the RGTM detects a fault on the liftgate ajar circuit.
RGTM B1306:12	Liftgate Ajar Switch: Circuit Short To Battery	An on-demand DTC that sets when the RGTM detects a fault on the liftgate ajar circuit.

Possible Sources

Wiring, terminals or connectors
Liftgate latch
Liftgate window latch
RGTM
BCM

NOTE: DTC B1306:01 may set when performing a BCM self test. If there is no observable symptom present, disregard and clear this DTC .

B1 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 B2

No	GO to Pinpoint Test A

B2 CHECK THE COURTESY LAMP OPERATION FROM THE LIFTGATE GLASS

Close the doors.

Open the liftgate glass and observe the courtesy lamps.

Do the courtesy lamps illuminate?

Yes

GO to B5

GO to B3

B3 CHECK THE LIFTGATE GLASS AJAR SWITCH

Disconnect Liftgate Glass Actuator C4040 .

Do the courtesy lamps illuminate?

Yes

INSTALL a new liftgate glass latch.
REFER to: Liftgate Window Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).

GO to B4

B4 CHECK THE LIFTGATE GLASS AJAR SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect RGTM C4174B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174B-7 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to B7

No	REPAIR the circuit.

B5 CHECK THE RGTM (REAR GATE TRUNK MODULE)

Ignition OFF.

Disconnect RGTM C4174B .

Ignition ON.

Do the courtesy lamps illuminate?

Yes

GO to B7

GO to B6

B6 CHECK THE LIFTGATE AJAR SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280E .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280E-34 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to B8

No	REPAIR the circuit.

B7 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).

B8 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

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: ONE OR MORE INTERIOR COURTESY LAMPS ARE INOPERATIVE

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

Normal Operation and Fault Conditions

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

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM B12C2:11	Puddle Lamp: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the BCM detects excessive current draw from the puddle lamp (interior lighting) output circuit.
BCM B12C2:15	Puddle Lamp: Circuit Short To Battery Or Open	A continuous memory and on-demand DTC that sets when the BCM detects lower than expected current draw from the puddle lamp (interior lighting) output circuit.
BCM B1313:11	Interior Lighting Output: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the BCM detects lower than expected current draw from the puddle lamp (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 lower than expected current draw from the puddle lamp (interior lighting) output circuit.

Possible Sources

Wiring, terminals or connectors
Interior lamp
BCM

NOTE: This is the diagnostic for the courtesy lamp function of the courtesy lamp system. For diagnosis of the demand lamp function of the courtesy lamp system, GO to Pinpoint Test F

C1 CHECK THE OPERATION OF ALL THE INTERIOR COURTESY LAMPS

Open a door and observe the interior courtesy lamps.

Are the interior courtesy lamps inoperative?

Yes

GO to C2

If only the cargo lamp is inoperative, GO to C8
If only the cargo space lamp is inoperative, GO to C10
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 scuff plate and exterior door handle lamps are inoperative, GO to C12
If only one scuff plate lamp is inoperative, GO to C14
If only one exterior door handle lamp is inoperative, GO to C16
If only one rear interior lamp is inoperative, GO to C17
If both rear interior lamps are inoperative, GO to C19

C2 CHECK FOR VOLTAGE TO THE FRONT COURTESY LAMP

Close the door.

Disconnect Overhead Console C930 .

Ignition ON.

Open a door.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-11 Ground

Is the voltage greater than 11 volts?

Yes

GO to C6

GO to C3

C3 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT COURTESY 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).

If equipped, disconnect Liftgate Rear Control Switch C4333, Second Row Folding Seat Switch C4512 and Third Row Folding Seat Switch C4179

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-11 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).

GO to C4

C4 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND

Disconnect BCM C2280C .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-11 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to C5

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 .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

C5 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-11 C2280C-13

Is the resistance less than 3 ohms?

Yes

GO to C22

No	REPAIR the circuit.

C6 CHECK THE OVERHEAD INTERIOR LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-12 Ground

Is the voltage greater than 11 volts?

Yes

GO to C7

No	REPAIR the circuit.

C7 CHECK THE FRONT COURTESY LAMP GROUND CIRCUIT

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-11 C930-1

Is the voltage greater than 11 volts?

Yes

INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).

No	REPAIR the circuit.

C8 CHECK FOR VOLTAGE TO THE CARGO LAMP

Close the door.

Disconnect Cargo Lamp C4049 .

Ignition ON.

Open a door.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4049-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to C9

No	REPAIR the circuit.

C9 CHECK THE CARGO LAMP GROUND CIRCUIT

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4049-1 C4049-3

Is the voltage greater than 11 volts?

Yes

GO to C19

No	REPAIR the circuit.

C10 CHECK FOR VOLTAGE TO THE CARGO SPACE LAMP

Close the door.

Disconnect Cargo Space Lamp C489 .

Ignition ON.

Open a door.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C489-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to C11

No	REPAIR the circuit.

C11 CHECK THE CARGO SPACE LAMP GROUND CIRCUIT

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C489-1 C489-3

Is the voltage greater than 11 volts?

Yes

GO to C19

No	REPAIR the circuit.

C12 CHECK THE BCM (BODY CONTROL MODULE) SCUFF PLATE LAMPS AND EXTERIOR DOOR HANDLE LEDS OUTPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280C .

Disconnect Driver Scuff Plate Lamp C3369 .

Disconnect Passenger Scuff Plate Lamp C3370 .

Disconnect LH Exterior Front Door Handle C573 .

Disconnect LH Exterior Front Door Handle C729 .

Disconnect RH Exterior Front Door Handle C693 .

Disconnect RH Exterior Front Door Handle C852 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280C-26 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to C13

No	REPAIR the circuit.

C13 CHECK THE BCM (BODY CONTROL MODULE) SCUFF PLATE LAMPS AND EXTERIOR DOOR HANDLE LEDS OUTPUT CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3369-1 C2280C-26

C573-3 C2280C-26

Is the resistance less than 3 ohms?

Yes

GO to C22

No	REPAIR the circuit.

C14 CHECK FOR VOLTAGE TO THE SCUFF PLATE LAMP

Close the door.

Disconnect Driver Scuff Plate Lamp C3369 .

Disconnect Passenger Scuff Plate Lamp C3370 .

Ignition ON.

Open a door.

Measure:
Click to display connectors
Driver Scuff Plate Lamp

Positive Lead Measurement / Action Negative Lead

C3369-1 Ground

Click to display connectors
Passenger Scuff Plate Lamp

Positive Lead Measurement / Action Negative Lead

C3370-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to C15

No	REPAIR the circuit.

C15 CHECK THE SCUFF PLATE LAMP GROUND CIRCUIT

Measure:
Click to display connectors
Driver Scuff Plate Lamp

Positive Lead Measurement / Action Negative Lead

C3369-1 C3369-2

Click to display connectors
Passenger Scuff Plate Lamp

Positive Lead Measurement / Action Negative Lead

C3370-1 C3370-2

Is the voltage greater than 11 volts?

Yes

REPLACE the lamp.

No	REPAIR the circuit.

C16 CHECK FOR VOLTAGE TO THE EXTERIOR DOOR HANDLE

Close the door.

Disconnect LH Exterior Front Door Handle C573 .

Disconnect LH Exterior Rear Door Handle C729 .

Disconnect RH Exterior Front Door Handle C693 .

Disconnect RH Exterior Rear Door Handle C852 .

Ignition ON.

Open a door.

Measure:
Click to display connectors
LH Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C573-3 Ground

Click to display connectors
LH Exterior Rear Door Handle

Positive Lead Measurement / Action Negative Lead

C729-3 Ground

Click to display connectors
RH Exterior Front Door Handle

Positive Lead Measurement / Action Negative Lead

C693-3 Ground

Click to display connectors
RH Exterior Rear Door Handle

Positive Lead Measurement / Action Negative Lead

C852-3 Ground

Is the voltage greater than 11 volts?

Yes

REPLACE the exterior door handle.
REFER to: Exterior Front Door Handle (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).

No	REPAIR the circuit.

C17 CHECK FOR VOLTAGE TO THE REAR COURTESY LAMP

Close the door.

Disconnect for vehicles without vista roof, Rear Dome Lamp C901 .

Disconnect for vehicles with vista roof, LH Rear Interior Lamp C963 or RH Rear Interior Lamp C964 .

Ignition ON.

Measure:
Click to display connectors
Rear Dome Lamp, Vehicles Without Vista Roof

Positive Lead Measurement / Action Negative Lead

C901-1 Ground

Click to display connectors
LH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C963-1 Ground

Click to display connectors
RH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C964-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to C18

No	REPAIR the circuit.

C18 CHECK THE REAR COURTESY LAMP GROUND CIRCUIT

Measure:
Click to display connectors
Rear Dome Lamp, Vehicles Without Vista Roof

Positive Lead Measurement / Action Negative Lead

C901-1 C901-5

Click to display connectors
LH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C963-1 C963-3

Click to display connectors
RH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C964-1 C964-3

Is the voltage greater than 11 volts?

Yes

GO to C19

No	REPAIR the circuit.

C19 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect Overhead Console C930 .

Disconnect Cargo Lamp C4049 .

Disconnect Cargo Space Lamp C489 .

Disconnect for vehicles without vista roof, Rear Dome Lamp C901 .

Disconnect for vehicles with vista roof, LH Rear Interior Lamp C963 or RH Rear Interior Lamp C964 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-5 Ground

Is any voltage present?

Yes

REPAIR the circuit.

GO to C20

C20 CHECK THE REAR LAMP CONTROL CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
Cargo Lamp

Positive Lead Measurement / Action Negative Lead

C4049-2 C930-5

Click to display connectors
Cargo Space Lamp

Positive Lead Measurement / Action Negative Lead

C489-2 C930-5

Click to display connectors
Rear Dome Lamp, Vehicles Without Vista Roof

Positive Lead Measurement / Action Negative Lead

C901-6 C930-5

Click to display connectors
LH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C963-2 C930-5

Click to display connectors
RH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C964-2 C930-5

Is the resistance less than 3 ohms?

Yes

GO to C21

No	REPAIR the circuit.

C21 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-5 Ground

Is the resistance greater than 10,000 ohms?

Yes

For vehicles not equipped with vista roof, INSTALL a new rear interior lamp. If the condition is still present, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For vehicles equipped with vista roof, if both rear interior lamps are inoperative, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For vehicles equipped with vista roof, if only one rear interior lamp is inoperative, INSTALL a new rear interior lamp.

No	REPAIR the circuit.

C22 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

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: 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 B1306:11	Liftgate Ajar Switch: Circuit Short To Ground	An on-demand DTC that sets when the RGTM detects a fault on the liftgate ajar circuit.
RGTM B1306:12	Liftgate Ajar Switch: Circuit Short To Battery	An on-demand DTC that sets when the RGTM detects a fault on the liftgate ajar circuit.

Possible Sources

Wiring, terminals or connectors
Ajar switch
RGTM
BCM

NOTE: DTC B1306:01 may set when performing a BCM self test. If there is no observable symptom present, disregard and clear this DTC .

D1 CHECK THE DOOR AJAR SWITCH PARAMETER IDENTIFICATIONS (PIDS)

Ignition ON.

Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).

Monitor the BCM DOOR_SW_DRVR, DOOR_SW_PSGR, DOOR_SW_LR and DOOR_SW_RR Parameter Identifications (PIDs) while opening and closing all the doors.

Do all the door ajar switch PID values agree with the door positions?

Yes

GO to D2

GO to D3

D2 CHECK THE LIFTGATE AJAR SWITCH PID

Using a diagnostic scan tool, view BCM PIDs.

Monitor the BCM Luggage Compartment Lid Ajar Switch (DOOR_SW_LUGG) PID while opening and closing the liftgate.

Does the PID value agree with the liftgate positions?

Yes

GO to D6

GO to D9

D3 BYPASS THE SUSPECT DOOR LATCH

Disconnect suspect door latch.

Connect a fused jumper wire:
Click to display connectors
LH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C525-6 C525-5

Click to display connectors
RH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C606-1 C606-2

Click to display connectors
LH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C750-6 C750-5

Click to display connectors
RH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C850-1 C850-2

Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).

Monitor the BCM DOOR_SW_DRVR, DOOR_SW_PSGR, DOOR_SW_LR and DOOR_SW_RR Parameter Identifications (PIDs).

Does the PID indicate the 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).

No	REMOVE the fused jumper wire. GO to D4

D4 BYPASS THE DOOR LATCH GROUND CIRCUIT

Connect a fused jumper wire:
Click to display connectors
LH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C525-6 Ground

Click to display connectors
RH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C606-1 Ground

Click to display connectors
LH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C750-6 Ground

Click to display connectors
RH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C850-1 Ground

Monitor the BCM DOOR_SW_DRVR, DOOR_SW_PSGR, DOOR_SW_LR and DOOR_SW_RR Parameter Identifications (PIDs).

Does the PID indicate the 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 D5

D5 CHECK THE SUSPECT DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN

Disconnect BCM C2280E .

Measure:
Click to display connectors
LH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C525-6 C2280E-33

Click to display connectors
RH Front Door Latch

Positive Lead Measurement / Action Negative Lead

C606-1 C2280E-21

Click to display connectors
LH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C750-6 C2280E-46

Click to display connectors
RH Rear Door Latch

Positive Lead Measurement / Action Negative Lead

C850-1 C2280E-19

Is the resistance less than 3 ohms?

Yes

GO to D11

No	REPAIR the door ajar input circuit in question.

D6 BYPASS THE LIFTGATE GLASS LATCH

NOTE: If the jumper wire fails, refer to the Wiring Diagrams manual to identify the possible causes of the circuit short.

Ignition OFF.

Disconnect Liftgate Glass Latch C4040 .

Ignition ON.

Connect a fused jumper wire:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4040-1 C4040-4

Do the courtesy lamps illuminate?

Yes

REMOVE the fused jumper wire. GO to D7

No	REMOVE the fused jumper wire. INSTALL a new liftgate glass latch. REFER to: Liftgate Window Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).

D7 CHECK THE LIFTGATE GLASS LATCH GROUND CIRCUIT

NOTE: If the jumper wire fails, refer to the Wiring Diagrams manual to identify the possible causes of the circuit short.

Connect a fused jumper wire:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4040-1 Ground

Do the courtesy lamps illuminate?

Yes

REMOVE the fused jumper wire. GO to D8

No	REMOVE the fused jumper wire. REPAIR the circuit.

D8 CHECK THE LIFTGATE GLASS AJAR RGTM (REAR GATE TRUNK MODULE) INPUT CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect RGTM C4174B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4040-1 C4174B-7

Is the resistance less than 3 ohms?

Yes

GO to D12

No	REPAIR the circuit.

D9 BYPASS THE RGTM (REAR GATE TRUNK MODULE)

Ignition OFF.

Disconnect RGTM C4174B .

Ignition ON.

Connect a fused jumper wire:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174A-21 Ground

Monitor the BCM Luggage Compartment Lid Ajar Switch (DOOR_SW_LUGG) PID .

Does the PID indicate the liftgate is closed?

Yes

REMOVE the fused jumper wire. GO to D11

No	REMOVE the fused jumper wire. GO to D10

D10 CHECK THE LIFTGATE AJAR BCM (BODY CONTROL MODULE) INPUT CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BCM C2280E .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174A-21 C2280E-34

Is the resistance less than 3 ohms?

Yes

GO to D11

No	REPAIR the circuit.

D11 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

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).

D12 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).

PINPOINT TEST E: 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 B12C2:15	Puddle Lamp: Circuit Short To Battery Or Open	A continuous memory and on-demand DTC that sets when the BCM detects lower than expected current draw from the puddle lamp (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 lower than expected current draw from the puddle lamp (interior lighting) output circuit.

Possible Sources

Wiring, terminals or connectors
Interior lamp
BCM

E1 CHECK THE OPERATION OF THE COURTESY LAMP FUNCTION FROM THE FRONT/DRIVER INTERIOR LAMP

NOTE: Verify the Door Defeat function has not been enabled before continuing with this step.

Ignition OFF.

Use the Global ON/OFF switch to activate and deactivate the overhead courtesy lamps.

Do the overhead courtesy lamps operate correctly?

Yes

The system is operating correctly at this time.

GO to E2

E2 CHECK THE OPERATION OF ALL THE INTERIOR COURTESY LAMPS

Close all doors and observe the courtesy lamps.

Are only the rear interior courtesy lamp(s) always on?

Yes

GO to E3

GO to E4

E3 CHECK THE REAR LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect Overhead Console C930 .

Disconnect for vehicles without vista roof, Rear Dome Lamp C901 .

Disconnect for vehicles with vista roof, LH Rear Interior Lamp C963 and RH Rear Interior Lamp C964 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-5 Ground

Is the resistance greater than 10,000 ohms?

Yes

INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).

No	REPAIR the circuit.

E4 ISOLATE THE BCM (BODY CONTROL MODULE)

Ignition OFF.

Disconnect BCM C2280C .

Ignition ON.

Do the interior courtesy lamps continue to illuminate?

Yes

GO to E5

GO to E6

E5 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect Overhead Console C930 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280C-13 Ground

Is any voltage present?

Yes

REPAIR the circuit.

No	INSTALL a new overhead console. REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation).

E6 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

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: 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 interior lamps for damage.

F1 CHECK THE DEMAND LAMP OPERATION

Ignition ON.

Check the operation of the LH vanity mirror, RH vanity mirror, overhead map, glove box lamps, cargo and cargo space lamps.

Do any of the LH vanity mirror, RH vanity mirror, overhead map, glove box lamps, cargo and cargo space lamps. illuminate?

Yes

If a vanity mirror lamp is inoperative, GO to F6
If the glove compartment lamp is inoperative, GO to F8
If an overhead map lamp is inoperative, GO to F10
If the cargo and cargo space lamps are inoperative, GO to F12

GO to F2

F2 CHECK FOR VOLTAGE TO THE FRONT OVERHEAD MAP LAMP

Ignition OFF.

Disconnect Overhead Console C930 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-12 Ground

Is the voltage greater than 11 volts?

Yes

GO to F10

GO to F3

F3 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT OVERHEAD MAP LAMP

Using a diagnostic scan tool, perform the BCM self-test.

Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-12 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).

GO to F4

F4 CHECK THE BCM (BODY CONTROL MODULE) DEMAND LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280C .

Disconnect Glove Compartment Lamp C254 .

Disconnect LH Vanity Mirror Lamp C906 .

Disconnect RH Vanity Mirror Lamp C907 .

Disconnect for vehicles with vista roof, LH Rear Interior Lamp C963 .

Disconnect for vehicles with vista roof, RH Rear Interior Lamp C964 .

Disconnect for vehicles without vista roof, Rear Dome Lamp C901 .

Disconnect Cargo Lamp C4049 .

Disconnect Cargo Space Lamp C489 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-12 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to F5

F5 CHECK THE BCM (BODY CONTROL MODULE) DEMAND LAMP OUTPUT CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C930-12 C2280C-14

Is the resistance less than 3 ohms?

Yes

GO to F14

No	REPAIR the circuit.

F6 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 F7

No	REPAIR the circuit.

F7 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.

F8 CHECK THE GLOVE COMPARTMENT LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect Glove Compartment Lamp C254 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C254-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to F9

No	REPAIR the circuit.

F9 CHECK THE GLOVE COMPARTMENT LAMP GROUND CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C254-1 C254-3

Is the voltage greater than 11 volts?

Yes

INSTALL a new glove compartment lamp.

No	REPAIR the circuit.

F10 CHECK THE OVERHEAD INTERIOR LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect Overhead Console C930 .

Disconnect for vehicles without vista roof, Rear Dome Lamp C901 .

Disconnect for vehicles with vista roof, LH Rear Interior Lamp C963 .

Disconnect for vehicles with vista roof, RH Rear Interior Lamp C964 .

Ignition ON.

Measure:
Click to display connectors
Overhead Console

Positive Lead Measurement / Action Negative Lead

C930-12 Ground

Click to display connectors
Rear Dome Lamp, Vehicles Without Vista Roof

Positive Lead Measurement / Action Negative Lead

C901-1 Ground

Click to display connectors
LH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C963-1 Ground

Click to display connectors
RH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C964-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to F11

No	REPAIR the circuit.

F11 CHECK THE OVERHEAD INTERIOR LAMP GROUND CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
Overhead Console

Positive Lead Measurement / Action Negative Lead

C930-12 C930-1

Click to display connectors
Rear Dome Lamp, Vehicles Without Vista Roof

Positive Lead Measurement / Action Negative Lead

C901-1 C901-5

Click to display connectors
LH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C963-1 C963-3

Click to display connectors
RH Rear Interior Lamp, Vehicles With Vista Roof

Positive Lead Measurement / Action Negative Lead

C964-1 C964-3

Is the voltage greater than 11 volts?

Yes

For the front interior lamps, INSTALL a new overhead console.
REFER to: Overhead Console (501-12 Instrument Panel and Console, Removal and Installation). For a rear interior lamp, INSTALL a new rear interior lamp.

No	REPAIR the circuit.

F12 CHECK THE CARGO AND CARGO SPACE LAMPS VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect Inoperative Cargo Lamp C4049 or Cargo Space Lamp C489 .

Ignition ON.

Measure:
Click to display connectors
Cargo Lamp

Positive Lead Measurement / Action Negative Lead

C4049-1 Ground

Click to display connectors
Cargo Space Lamp

Positive Lead Measurement / Action Negative Lead

C489-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to F13

No	REPAIR the circuit.

F13 CHECK THE CARGO AND CARGO SPACE LAMPS GROUND CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
Cargo Lamp

Positive Lead Measurement / Action Negative Lead

C4049-1 C4049-3

Click to display connectors
Cargo Space Lamp

Positive Lead Measurement / Action Negative Lead

C489-1 C489-3

Is the voltage greater than 11 volts?

Yes

INSTALL a new cargo lamp and cargo space lamps in question.

No	REPAIR the circuit.

F14 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

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 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

G1 CHECK THE DEMAND LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect BCM C2280C .

Turn any demand (map or vanity mirror) lamp on.

Does the demand lamp turn on?

Yes

REPAIR the circuit.

GO to G2

G2 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

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: A WELCOME MAT LAMP IS INOPERATIVE OR ALWAYS ON

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

Normal Operation and Fault Conditions

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

DTC Fault Trigger Conditions

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

Possible Sources

Wiring, terminals or connectors
Welcome mat lamp
Exterior mirror
DDM
PDM

Visual Inspection and Pre-checks

Inspect the exterior mirror for damage.

H1 CHECK THE OPERATION OF THE INTERIOR COURTESY LAMPS

Ignition ON.

Ignition OFF.

Open and close a door.

Observe the interior courtesy lamp operation for 30 seconds.

Do the interior courtesy lamps operate correctly?

Yes

If a welcome mat lamp is always on, GO to H2
If a welcome mat lamp is inoperative, GO to H3

No	REFER to the Interior Lamps Symptom Chart in this section and diagnose the interior courtesy lamps.

H2 CHECK THE WELCOME MAT LAMP POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

Disconnect LH Exterior Mirror C516 (LH puddle lamp).

Disconnect RH Exterior Mirror C622 (RH puddle lamp).

Ignition ON.

Does the welcome mat continue to illuminate?

Yes

REPAIR the circuit.

GO to H8

H3 CHECK THE MIRROR OPERATION

Ignition ON.

Using the exterior mirror control switch, operate the exterior power mirrors.

Do the exterior power mirrors operate?

Yes

GO to H4

No	REFER to: Rear View Mirrors (501-09 Rear View Mirrors, Diagnosis and Testing).

H4 CHECK FOR VOLTAGE TO THE WELCOME MAT LAMP

Ignition OFF.

Disconnect Inoperative LH Exterior Mirror C516 or RH Exterior Mirror C622 .

Ignition ON.

Open any door.

Measure:
Click to display connectors
LH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C516-11 Ground

Click to display connectors
RH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C622-11 Ground

Is the voltage greater than 11 volts?

Yes

GO to H7

GO to H5

H5 CHECK THE WELCOME MAT LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect LH Exterior Mirror C516 (LH puddle lamp).

Disconnect RH Exterior Mirror C622 (RH puddle lamp).

Measure:
Click to display connectors
LH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C516-11 Ground

Click to display connectors
RH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C622-11 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to H6

No	REPAIR the circuit.

H6 CHECK THE WELCOME MAT LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
LH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C516-11 C501B-12

Click to display connectors
RH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C622-11 C652B-12

Is the resistance less than 3 ohms?

Yes

GO to H8

No	REPAIR the circuit.

H7 CHECK THE EXTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
LH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C516-11 C516-2

Click to display connectors
RH Exterior Mirror

Positive Lead Measurement / Action Negative Lead

C622-11 C622-2

Is the voltage greater than 11 volts?

Yes

CHECK the exterior mirror jumper harness between the vehicle harness and the puddle lamp for open circuits and damaged or pushed-out pins. If the jumper harness is OK, INSTALL a new welcome mat lamp.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation). If the jumper harness is not OK, REPAIR the jumper harness.

No	REPAIR the circuit.

H8 CHECK FOR CORRECT DOOR MODULE OPERATION

Disconnect and inspect all door module 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 door module 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, replace the door module.
For a LH door module,
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation). For a RH door module,
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. CLEAR the Diagnostic Trouble Codes (DTCs).

PINPOINT TEST I: 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 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.

Possible Sources

Wiring, terminals or connectors
FDIM
BCM

I1 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 I2

No	Refer to the appropriate section in Group 415 for the procedure.

I2 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, perform the BCM self-test.

Is DTC B1465:00, B1467:00, B145C:11 or B145C:15 present?

Yes

For DTC B1465:00, GO to I3
For DTC B1467:00, GO to I6
For DTC B145C:11, GO to I9
For DTC B145C:15, GO to I10

GO to I12

I3 CHECK THE DOOR AND SAFETY BELT AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect BCM C2280C .

Disconnect BCM C2280E .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280E-38 Ground

Is voltage present?

Yes

REPAIR the circuit.

GO to I4

I4 CHECK THE DOOR AND SAFETY BELT AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect LH Interior Front Door Handle Ambient Lighting Lamp C5018 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C5018-1 C2280E-38

Is the resistance less than 3 ohms?

Yes

GO to I5

No	REPAIR the circuit.

I5 CHECK THE DOOR AND SAFETY BELT AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND

Disconnect RH Interior Front Door Handle Ambient Lighting Lamp C6016 .

Disconnect LH Interior Rear Door Handle Ambient Lighting Lamp C754 .

Disconnect RH Interior Front Door Handle Ambient Lighting Lamp C854 .

Disconnect Driver Seatbelt Buckle Switch C3201 .

Disconnect Passenger Seatbelt Buckle Switch C3738 .

Disconnect Second Row Center Seatbelt Buckle Switch C3819 .

Disconnect Second Row Left Seatbelt Inflator C3646 .

Disconnect Second Row Right Seatbelt Inflator C3647 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280E-38 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to I12

I6 CHECK THE FOOTWELL AND FRONT CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect BCM C2280B .

Disconnect BCM C2280C .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-13 Ground

Is voltage present?

Yes

REPAIR the circuit.

GO to I7

I7 CHECK THE FOOTWELL AND FRONT CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect LH Front Footwell Lamp C2056 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-13 C2056-2

Is the resistance less than 3 ohms?

Yes

GO to I8

No	REPAIR the circuit.

I8 CHECK THE FOOTWELL AND FRONT CONSOLE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND

Disconnect RH Front Footwell Lamp C2057 .

Disconnect Floor Console Ambient Lighting Lamp C3349 .

Disconnect Passenger Side Instrument Panel Ambient Lighting Lamp C2476 .

Disconnect Driver Front Seat (Rear Footwell) Ambient Lighting Lamp C3458 .

Disconnect Passenger Front Seat (Rear Footwell) Ambient Lighting Lamp C3457 .

Disconnect Second Row Cup Holder Ambient Light C3790 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-13 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to I12

No	REPAIR the circuit.

I9 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO GROUND

Disconnect BCM C2280C .

Disconnect LH Interior Front Door Handle Ambient Lighting Lamp C5018 .

Disconnect RH Interior Front Door Handle Ambient Lighting Lamp C6016 .

Disconnect LH Interior Rear Door Handle Ambient Lighting Lamp C754 .

Disconnect RH Interior Front Door Handle Ambient Lighting Lamp C854 .

Disconnect LH Front Footwell Lamp C2056 .

Disconnect RH Front Footwell Lamp C2057 .

Disconnect Driver Front Seat (Rear Footwell) Ambient Lighting Lamp C3458 .

Disconnect Passenger Front Seat (Rear Footwell) Ambient Lighting Lamp C3457 .

Disconnect Passenger Side Instrument Panel Ambient Lighting Lamp C2476 .

Disconnect Floor Console Ambient Lighting Lamp C3349 .

Disconnect Driver Seatbelt Buckle Switch C3201 .

Disconnect Passenger Seatbelt Buckle Switch C3738 .

Disconnect Second Row Center Seatbelt Buckle Switch C3819 .

Disconnect Second Row Left Seatbelt Inflator C3646 .

Disconnect Second Row Right Seatbelt Inflator C3647 .

Disconnect Second Row Cup Holder Ambient Light C3790 .

Disconnect Second Row Console Ambient Light C3735 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280C-4 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to I12

I10 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR AN OPEN

Disconnect BCM C2280C .

Disconnect LH Front Footwell Lamp C2057 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280C-4 C2057-1

Is the resistance greater than 10,000 ohms?

Yes

GO to I11

No	REPAIR the circuit.

I11 CHECK THE AMBIENT LIGHTING VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280C-4 Ground

Is voltage present?

Yes

REPAIR the circuit.

GO to I12

I12 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

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 J: ONE OR MORE OF THE AMBIENT LIGHTING LEDS ARE INOPERATIVE OR DO NOT CHANGE COLOR/INTENSITY

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

Normal Operation and Fault Conditions

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

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM B1465:00	Ambient Lighting Bus 1: No Sub Type Information	Sets when the BCM detects a fault in the LIN circuit to the door ambient lighting Light Emitting Diodes (LEDs).
BCM B1467:00	Ambient Lighting Bus 3: No Sub Type Information	Sets when the BCM detects a fault in the LIN circuit to the footwell and center console ambient lighting Light Emitting Diodes (LEDs).

Possible Sources

Wiring, terminals or connectors
Ambient lighting LED
BCM

J1 CHECK THE AMBIENT LIGHTING LIGHT EMITTING DIODES (LEDS)

Ignition ON.

Place the headlamp switch in the PARKING LAMPS ON position.

Observe the operation of all the ambient lighting Light Emitting Diodes (LEDs).

Are all the ambient lighting Light Emitting Diodes (LEDs) inoperative?

Yes

GO to Pinpoint Test I

GO to J2

J2 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
LH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2056-1 Ground

Click to display connectors
RH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2057-1 Ground

Click to display connectors
Driver Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3458-1 Ground

Click to display connectors
Passenger Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3457-1 Ground

Click to display connectors
Driver Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3201-2 Ground

Click to display connectors
Passenger Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3738-2 Ground

Click to display connectors
Second Row Left Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3646-2 Ground

Click to display connectors
Second Row Right Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3647-2 Ground

Click to display connectors
Second Row Center Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3819-2 Ground

Click to display connectors
Passenger Side Instrument Panel Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C2476-1 Ground

Click to display connectors
LH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C5018-3 Ground

Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-3 Ground

Click to display connectors
RH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C6016-3 Ground

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-3 Ground

Click to display connectors
Floor Console Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3349-1 Ground

Click to display connectors
Second Row Console Ambient Light

Positive Lead Measurement / Action Negative Lead

C3735-1 Ground

Click to display connectors
Second Row Cup Holder Ambient Light

Positive Lead Measurement / Action Negative Lead

C3790-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to J3

No	REPAIR the LED voltage supply circuit in question.

J3 CHECK THE LED (LIGHT EMITTING DIODE) GROUND CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
LH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2056-1 C2056-3

Click to display connectors
RH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2057-1 C2057-3

Click to display connectors
Driver Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3458-1 C3458-3

Click to display connectors
Passenger Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3457-1 C3457-3

Click to display connectors
Driver Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3201-2 C3201-3

Click to display connectors
Passenger Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3738-2 C3738-3

Click to display connectors
Second Row Left Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3646-2 C3646-6

Click to display connectors
Second Row Right Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3647-2 C3647-6

Click to display connectors
Second Row Center Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3819-2 C3819-6

Click to display connectors
Passenger Side Instrument Panel Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C2476-1 C2476-3

Click to display connectors
LH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C5018-3 C5018-4

Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-3 C754-4

Click to display connectors
RH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C649-3 C649-4

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-3 C854-4

Click to display connectors
Floor Console Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3349-1 C3349-3

Click to display connectors
Second Row Console Ambient Light

Positive Lead Measurement / Action Negative Lead

C3735-1 C3735-3

Click to display connectors
Second Row Cup Holder Ambient Light

Positive Lead Measurement / Action Negative Lead

C3790-1 C3790-3

Is the voltage greater than 11 volts?

Yes

GO to J4

No	REPAIR the ground circuit in question.

J4 CHECK THE AMBIENT LIGHTING LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN

Ignition OFF.

Place the headlamp switch in the OFF position.

Disconnect BCM C2280E (door handle and safety belt Light Emitting Diodes (LEDs)).

Disconnect BCM C2280B (second row cup holder, instrument panel, front floor console and footwell Light Emitting Diodes (LEDs)).

Measure:
Click to display connectors
LH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2056-2 C2280B-13

Click to display connectors
RH Front Footwell Lamp

Positive Lead Measurement / Action Negative Lead

C2057-2 C2280B-13

Click to display connectors
Driver Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3458-2 C2280B-13

Click to display connectors
Passenger Front Seat (Rear Footwell) Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3457-2 C2280B-13

Click to display connectors
Driver Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3201-1 C2280E-38

Click to display connectors
Passenger Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3738-1 C2280E-38

Click to display connectors
Second Row Left Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3646-5 C2280E-38

Click to display connectors
Second Row Right Seatbelt Inflator

Positive Lead Measurement / Action Negative Lead

C3647-5 C2280E-38

Click to display connectors
Second Row Center Seatbelt Buckle Switch

Positive Lead Measurement / Action Negative Lead

C3819-5 C2280E-38

Click to display connectors
Passenger Side Instrument Panel Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C2476-2 C2280B-13

Click to display connectors
LH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C5018-1 C2280E-38

Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-1 C2280E-38

Click to display connectors
RH Interior Front Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C6016-1 C2280E-38

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-1 C2280E-38

Click to display connectors
Floor Console Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C3349-2 C2280B-13

Click to display connectors
Second Row Cup Holder Ambient Light

Positive Lead Measurement / Action Negative Lead

C3790-2 C2280B-13

Is the resistance less than 3 ohms?

Yes

INSTALL a new ambient lighting LED in question.

No	REPAIR the circuit.

PINPOINT TEST K: THE POWER RUNNING BOARD LAMP 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
RBM B155B:11	Left Power Running Board LEDs: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the RBM detects a short to ground from the power running board lamp power supply output circuit.
RBM B155B:12	Left Power Running Board LEDs: Circuit Short To Battery	A continuous memory and on-demand DTC that sets when the RBM detects a short to battery from the power running board lamp power supply output circuit.
RBM B155B:13	Left Power Running Board LEDs: Circuit Open	A continuous memory and on-demand DTC that sets when the RBM detects an open from the power running board lamp power supply output circuit.
RBM B155C:11	Right Power Running Board LEDs: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the RBM detects a short to ground from the power running board lamp power supply output circuit.
RBM B155C:12	Right Power Running Board LEDs: Circuit Short To Battery	A continuous memory and on-demand DTC that sets when the RBM detects a short to battery from the power running board lamp power supply output circuit.
RBM B155C:13	Right Power Running Board LEDs: Circuit Open	A continuous memory and on-demand DTC that sets when the RBM detects an open from the power running board lamp power supply output circuit.

Possible Sources

Wiring, terminals or connectors
Running board lamp
BCM

K1 CHECK THE POWER RUNNING BOARD OPERATION

NOTE: When a door is closed, a short delay is normal before the power running board retracts. This delay feature is to reduce excessive power running board cycling if a door is closed and another door on the same side is then opened (for example if a passenger is moving from the front seat to the rear seat).

Observe the operation of the power running boards.
REFER to: Power Running Board (PRB) (501-08 Exterior Trim and Ornamentation) .

Do both power running boards operate correctly?

Yes

If a power running board lamp is always on, GO to K2
If a power running board lamp is inoperative, GO to K3

No	REFER to: Power Running Board (PRB) (501-08 Exterior Trim and Ornamentation) .

K2 CHECK THE POWER RUNNING BOARD LAMP POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

Disconnect RBM C3313A .

Ignition ON.

Does the power running board lamp continue to illuminate?

Yes

REPAIR the circuit.

GO to K7

K3 CHECK FOR VOLTAGE TO THE POWER RUNNING BOARD LAMP

Ignition OFF.

Disconnect Inoperative LH Power Running Board Lamp (Running Board Motor Assembly) C3185B or RH Power Running Board Lamp (Running Board Motor Assembly) C3186B .

Ignition ON.

Open any door.

Connect:
Click to display connectors
LH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3185B-1 Ground

Click to display connectors
RH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3186B-1 Ground

Does the test light illuminate?

Yes

GO to K6

GO to K4

K4 CHECK THE POWER RUNNING BOARD LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect RBM C3313A .

Measure:
Click to display connectors
LH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3185B-1 Ground

Click to display connectors
RH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3186B-1 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to K5

No	REPAIR the circuit.

K5 CHECK THE POWER RUNNING BOARD LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
LH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3185B-1 C3313A-7

Click to display connectors
RH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3186B-1 C3313A-8

Is the resistance less than 3 ohms?

Yes

GO to K7

No	REPAIR the circuit.

K6 CHECK THE POWER RUNNING BOARD LAMP GROUND CIRCUIT FOR AN OPEN

Connect:
Click to display connectors
LH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3185B-1 C3185B-2

Click to display connectors
RH Power Running Board Lamp (Running Board Motor Assembly)

Positive Lead Measurement / Action Negative Lead

C3186B-1 C3186B-2

Does the test light illuminate?

Yes

INSTALL a new power running board lamp.

No	REPAIR the circuit.

K7 CHECK FOR CORRECT RBM (RUNNING BOARD CONTROL MODULE) OPERATION

Disconnect and inspect all RBM 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 RBM 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, REPLACE the RBM .
REFER to: Running Board Control Module (RBM) (501-08 Exterior Trim and Ornamentation, 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 L: THE REAR PUDDLE LAMP 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).

Possible Sources

Wiring, terminals or connectors
Rear puddle lamp(s)
BCM

L1 CHECK THE OPERATION OF THE INTERIOR COURTESY LAMPS

Ignition ON.

Ignition OFF.

Open and close a door.

Observe the interior courtesy lamp operation for 30 seconds.

Do the interior courtesy lamps operate correctly?

Yes

If the rear puddle lamps are always on, GO to L2
If a rear puddle lamp is inoperative, GO to L3

No	REFER to the Interior Lamps Symptom Chart in this section and diagnose the interior courtesy lamps.

L2 CHECK THE BCM (BODY CONTROL MODULE) REAR PUDDLE LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE

Disconnect BCM C2280C .

Do the rear puddle lamps continue to illuminate?

Yes

REPAIR the circuit.

GO to L7

L3 CHECK FOR VOLTAGE AT THE BCM (BODY CONTROL MODULE) REAR PUDDLE LAMP OUTPUT CIRCUIT

Close the door.

Disconnect Inoperative LH Interior Rear Door Handle Ambient Lighting Lamp C754 or RH Interior Rear Door Handle Ambient Lighting Lamp C854 .

Open a rear door.

Measure:
Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-5 Ground

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-5 Ground

Is the voltage greater than 11 volts?

Yes

GO to L6

GO to L4

L4 CHECK THE BCM (BODY CONTROL MODULE) REAR LAMP OUTPUT CIRCUIT FOR A SHORT TO GROUND

Disconnect BCM C2280C .

Measure:
Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-5 Ground

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-5 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to L5

L5 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP OUTPUT CIRCUIT FOR AN OPEN

Measure:
Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-5 C2280C-13

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-5 C2280C-13

Is the resistance less than 3 ohms?

Yes

GO to L7

No	REPAIR the circuit.

L6 CHECK THE BCM (BODY CONTROL MODULE) COURTESY LAMP GROUND CIRCUIT

Measure:
Click to display connectors
LH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C754-5 C754-4

Click to display connectors
RH Interior Rear Door Handle Ambient Lighting Lamp

Positive Lead Measurement / Action Negative Lead

C854-5 C854-4

Is the voltage greater than 11 volts?

Yes

INSTALL a new interior rear door handle ambient lighting lamp.

No	REPAIR the circuit.

L7 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

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).

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

S..

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Diagnostic Methods. Description and Operation

This document provides critical diagnostic knowledge required for successful repair outcomes. It identifies technical competencies expected by users of this manual.

Ford Diagnostic Assumptions

Ford diagnostics assume the vehicle concern described by the test title is currently present. Exceptions to this rule are noted in each test. Do not replace modules or other components as directed by a diagnostic if the concern is not present at the time of testing.

Lincoln Navigator: Interior Lighting / Interior Lighting. Diagnosis and Testing

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Diagnostic Methods. Description and Operation