Test A: The Interior Lamps Are Inoperative

PINPOINT TEST A: THE INTERIOR LAMPS ARE INOPERATIVE

A1-A2:

A3-A4:

Normal Operation
Voltage is supplied to the smart junction box (SJB) through circuit 1118 (RD). Fuse 13 (15A) in the SJB supplies voltage to the interior lamp/battery saver relay (integral to the SJB). When any door is opened, the door ajar switch closes, signalling the SJB. The SJB monitors the door ajar circuits, and based on the door ajar status, the SJB will supply voltage to the interior lamps on circuit 53 (BK/LB).

Possible Causes
- Fuse
- Circuit 53 (BK/LB) open or short to ground
- Interior lamp
- SJB