Courtesy Lamp On At All Times

Tests 623 - 627:

Tests 628 - 629:

SYMPTOM
* COURTESY LAMP ON AT ALL TIMES

POSSIBLE CAUSES
- No response(BCM)/CCD bus failure
- Entry door misaligned or misadjusted
- Courtesy lamp driver circuit short to ground
- Courtesy lamp relay control CKT short to GND
- Courtesy light RLY defective(short)by default