All Doors Fail to Lock and Unlock From One Switch

Test 1 - 3:

Test 4 - 6:

SYMPTOM
ALL DOORS FAIL TO LOCK AND UNLOCK FROM ONE SWITCH

POSSIBLE CAUSES
- Door lock switch open
- Door lock switch fused B(+) CKT open
- Door lock switch output CKT open
- Door lock switch output voltage too high
- Door lock switch voltage too high
- Intermittent symptom selected