Overview
The interior lighting system consists of
- Courtesy lamps
- Demand lamps
- Ambient lighting
The courtesy lamps subsystem consists of
- Interior lamps
- Puddle lamps (if equipped)
- Door ajar switches (integrated into the door latches)
- Liftgate ajar switch (integrated into the liftgate latch)
- Courtesy lamp switch (integrated into the front interior courtesy lamp)
- DDM
- PDM
- BCM
The courtesy lamps provide illumination to the vehicle interior and below the exterior mirrors (if equipped) when entering or exiting the vehicle or when requested using the courtesy lamp switch located on the interior lamp.
The demand lamps subsystem consists of
- Interior lamps (map lamps)
- Vanity mirror lamps
- Luggage compartment lamp
- BCM
The demand lamps provide illumination to specific areas within the vehicle when needed.
The BCM energizes the interior light relay to supply voltage to the demand lamps when the battery saver feature is not active.
The ambient lighting subsystem consists of
- Ambient lighting Light Emitting Diodes (LEDs)
- Ambient lighting module (integrated into the overhead console)
- Ambient lighting switches (integrated into the overhead console)
The ambient lighting provides aesthetically colored illumination to the cup holders, the door map pockets, the door release handles, and the front footwells for illuminated entry or when the ignition is in RUN with the parking lamps on. The ambient lighting is controlled using the buttons and knob on the overhead console.
Scheme 1
Normal Operation and Fault Conditions
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1175:64 | Drivers Door Ajar Switch: Signal Plausibility Failure | Sets when the BCM detects a short to ground from the driver door ajar input circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1D13:11 | Interior Lights Circuit "A": Circuit Short To Ground | Sets when the BCM detects an open from the courtesy lighting "A" ground control circuit. |
| B1D13:12 | Interior Lights Circuit "A": Circuit Short To Battery | Sets when the BCM detects a short to battery voltage from the courtesy lighting "A" ground control circuit. |
| B1D14:11 | Interior Lights Circuit "B": Circuit Short To Ground | Sets when the BCM detects an open from the courtesy lighting "B" ground control circuit. |
| B1D14:12 | Interior Lights Circuit "B": Circuit Short To Battery | Sets when the BCM detects a short to battery voltage from the courtesy lighting "B" ground control circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1175:64 | Drivers Door Ajar Switch: Signal Plausibility Failure | May set when the BCM detects an open from the left front door ajar circuit. |
| B11E9:13 | Left Rear Door Ajar Switch: Circuit Open | Sets when the BCM detects an open from the left rear door ajar |
| Circuit. | ||
| B11EA:13 | Right Rear Door Ajar Switch: Circuit Open | Sets when the BCM detects an open from the right rear door ajar circuit. |
| B1306:13 | Liftgate Ajar Switch: Circuit Open | Sets when the BCM detects an open from the liftgate ajar circuit during a self-test. |
| B1318:13 | Right Front Door Ajar Switch: Circuit Open | Sets when the BCM detects an open from the right front door ajar circuit. |
| B131B:13 | Left Front Door Ajar Switch: Circuit Open | Sets when the BCM detects an open from the left front door ajar circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1D13:11 | Interior Lights Circuit "A": Circuit Short To Ground | Sets when the BCM detects a short to ground from the courtesy lighting "A" ground control circuit. |
| B1D14:11 | Interior Lights Circuit "B": Circuit Short To Ground | Sets when the BCM detects a short to ground from the courtesy lighting "B" ground control circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12C2:11 | Puddle Lamp: Circuit Short To Ground | Sets when the DDM or the PDM detects a short to ground from the puddle lamp output circuit. |
| B12C2:15 | Puddle Lamp: Circuit Short To Battery Or Open | Sets when the DDM or the PDM detects an open or a short to battery voltage from the puddle lamp output circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1088:86 | LIN Bus "B": Signal Invalid | Sets when the BCM loses communication with the ambient lighting module over the LIN circuit. |
| B1088:88 | LIN Bus "B": Bus Off | Sets when the BCM loses communication with the ambient lighting module over the LIN circuit. |
| B1390:83 | Ambient Light Control Module: Value Of Signal Protection Calculation Incorrect | Sets when the BCM receives an incorrect value from the ambient lighting module over the LIN circuit. |
| B1390:87 | Ambient Light Control Module: Missing Message | Sets when the BCM loses communication with the ambient lighting module over the LIN circuit. |
DTC FAULT TRIGGER CONDITIONS
REFER to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .
See also:
• REMOTE KEYLESS ENTRY AND ALARM