All Doors Failing to Lock/Unlock From Any Switch

Test 1 - 4:

Test 5 - 9:

SYMPTOM
ALL DOORS FAILING TO LOCK/UNLOCK FROM ANY SWITCH

POSSIBLE CAUSES
- CTM
- Power Door Lock Fuse
- Power Door Lock Fuse
- Open CTM ground circuit
- Door Lock Driver CKT shorted to ground
- Door Unlock Driver CKT shorted to ground
- Fuse blows when "UNLOCK" button is pressed
- Fused B(+) CKT shorted to ground
- Open Fused B(+) circuit