All Doors Failing to Unlock From Any Switch
Tests 1 - 4:
Tests 5 - 9:
SYMPTOM
ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH
POSSIBLE CAUSES
- Fused B(+) circuit in junction block
- Unlock relay output circuit short to ground
- Door unlock relay - open/shorted coil
- Door unlock relay-shorted terminals
- Door lock relay ground open
- Door lock relay ground circuit open
- Junction block - unlock relay control CKT open
- Body control module - unlock relay control open