Courtesy Lamps Stay on At All Times

Test 1 - 3:

Test 4:

SYMPTOM
COURTESY LAMPS STAY ON AT ALL TIMES

POSSIBLE CAUSES
- Courtesy lamps driver headliner circuit short to ground
- Courtesy lamps driver circuit body harness short to ground
- Panel lamps dimmer switch MUX short to ground
- Multifunction switch
- Body control module