Test B: An Individual Interior Lamp Is Inoperative

PINPOINT TEST B: AN INDIVIDUAL INTERIOR LAMP IS INOPERATIVE

B1:

B1-B2:

Normal Operation
The lighting control module (LCM) supplies voltage to the interior lamps on circuit 53 (BK/LB). The interior lamps are grounded through circuit 57 (BK).

Possible Causes
- Circuit 53 (BK/LB) open
- Circuit 57 (BK) open
- Interior lamp