Courtesy Lamps Inoperative From Courtesy Lamp Switch

Tests 1 - 3:

Tests 4 - 5:

SYMPTOM
COURTESY LAMPS INOPERATIVE FROM THE COURTESY LAMP SWITCH

POSSIBLE CAUSES
- Courtesy lamp switch sense circuit open
- Headlamp switch ground open
- Courtesy lamp switch sense circuit short to ground
- BCM - courtesy lamp switch circuit
- Courtesy lamp switch open
- BCM - courtesy lamp switch