All Doors Failing to Lock and Unlock From Any Switch

Test 1:

Test 2 - 6:

Test 7 - 12:

Test 13 - 17:

Test 18 - 20:

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