All Doors Failing to Lock and Unlock From Any Switch

SYMPTOM
* ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH

POSSIBLE CAUSES
- Link to body communication bus inoperative
- Door lock switches defective
- Door lock relay ground circuit open
- Door unlock driver circuit shorted
- Door lock driver circuits shorted to GND
- Door lock SW output CKT SHRT to bat
- Door lock switch output circuit short to battery
- Driver circuit short to voltage
- Fused B(+) circuit open
- Fused B(+) circuit to PDC open
- Left front door lock switch output circuit open
- BCM defective door lock switch circuit
- BCM defective GND CKT
- BCM internal short
- BCM lock switch circuit internal short
- BCM terminals damaged
- BCM Unlock switch circuit internal short
- Body control module voltage too high
- Fused B(+) CKT in junction block voltage too high
- Intermittent symptom selected