Operation CHARM: Car repair manuals for everyone.

Cylinder Lock Switch Failure/Unlock

Test 1 - 3:




Test 4 - 7:




SYMPTOM
CYLINDER LOCK SWITCH FAILURE/UNLOCK

WHEN MONITORED
Continuously

SET CONDITION
If the CTM detects that the Cylinder Lock switch remains in the "unlock" position for longer then 30 seconds.

POSSIBLE CAUSES
- Driver unlock switch - open
- Key cylinder mechanical malfunction
- Passenger unlock switch - open
- Defective CTM - unlock
- Cylinder lock switch mux circuit short to ground
- Liftgate cylinder lock switch - open