Test B: The Courtesy Lamps Do Not Turn On With One Door Open

PINPOINT TEST B: THE COURTESY LAMPS DO NOT TURN ON WITH ONE DOOR OPEN

B1-B4:

Normal Operation
When a door is open, the ajar switch opens the circuit to the smart junction box (SJB). The SJB monitors the ajar circuits, and based on the ajar status, the SJB will supply voltage to the courtesy lamps on circuit 53 (BK/LB).

Possible Causes
- Circuit 1312 (LG/BK) short to ground
- Circuit 1314 (YE/LG) short to ground
- Door ajar switch
- SJB