Courtesy Lamps On at All Times

Tests 1 - 2:

Tests 3 - 7:

SYMPTOM
COURTESY LAMPS ON AT ALL TIMES

POSSIBLE CAUSES
- Courtesy lamp relay output circuit shorted to B(+)
- Courtesy lamp relay control circuit shorted to ground
- Switched courtesy lamp relay control circuit shorted to ground
- Courtesy lamp relay defective - coil shorted
- Headlamp switch shorted
- BCM defective (relay control shorted) by default