Courtesy Lamps Inoperative With Any Door

SYMPTOM
* COURTESY LAMPS INOPERATIVE WITH ANY DOOR

POSSIBLE CAUSES
- No response (BCM) - CCD bus failure
- Courtesy lamp relay control circuit open
- Switched courtesy lamp relay control circuit open
- Junction block defective - lamp relay fused B(+) (CAV 87) open
- Courtesy lamp relay defective - coil open
- Junction block defective - lamp relay fused B(+) (CAV 30) open
- Junction block defective - lamp relay fused B(+) (CAV 86) Open
- Headlamp switch defective - open
- BCM defective - lamp relay control function (by default)
- BCM defective - driver door ajar switch status