Test E: A Single Illumination Source Is Inoperative

PINPOINT TEST E: A SINGLE ILLUMINATION SOURCE IS INOPERATIVE

E1:

E1-E2:

E2 Continued:

Normal Operation
The lighting control module (LCM) supplies a variable pulse width modulated (PWM) voltage to the dimmable switches and components through circuit 484 (OG/BK). The non-dimmable switches and components receive voltage through circuit 964 (DB/LG) from the central junction box (CJB) when the ignition switch is in the ACC or RUN positions. The switches and components are grounded through circuit 57 (BK).

Possible Causes
- Circuit 57 (BK) open
- Circuit 484 (OG/BK) open or short to ground
- Circuit 964 (DB/LG) open or short to ground
- Headlamp switch
- Adjustable pedal switch
- Traction control switch
- Message center switch
- Clock
- Front cigar lighter
- LH rear cigar lighter
- RH rear cigar lighter
- Exterior mirror control switch
- Driver door lock control switch
- - Passenger door lock control switch
- Driver heated seat switch
- Passenger heated seat switch
- LH rear heated seat switch
- RH rear heated seat switch
- Audio/navigation control unit
- Radio
- Rear audio/climate control switch