All Doors Failing to Lock and Unlock From One Switch

Test 1 - 3:

Test 4 - 9:

Test 10:

SYMPTOM
ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH

POSSIBLE CAUSES
- Fused B+ CKT open
- Open fused B+ circuit
- Door switch MUX CKT open
- Door key cylinder switch sense circuit open
- Door key cylinder switch sense circuit shorted to ground
- Defective door cylinder lock switch
- Defective power door lock switch-open
- Body control module
- Body control module