Rear ATC Switch LED(s)/Backlighting Inoperative

Test 1 - 3:

Test 4 - 5:

SYMPTOM
REAR ATC SWITCH LED(S)/BACK LIGHTING INOPERATIVE

POSSIBLE CAUSES
- Check for ATC DTC's
- Check for BCM DTC's
- Rear ATC switch - LED(s) inoperative
- Rear ATC switch - back lighting inoperative
- Panel lamps driver circuit open
- Body control module - panel lamps driver open