Doors Fail to Lock From Either Switch

Tests 1 - 3:

Tests 4 - 9:

Tests 10 - 12:

SYMPTOM
DOORS FAIL TO LOCK FROM EITHER SWITCH

POSSIBLE CAUSES
- Body control module
- Door lock relay
- Fused B+ circuit open
- Door lock relay coil ground circuit open
- Door lock relay driver open
- Key-in ignition switch
- Key-in ignition sense circuit short to ground
- Key-in IGN sense CKT short to key-in IGN GND CKT
- Door lock sense circuit open
- Body control module
- Body control module