Cube L4-1.8L (MR18DE) (2010)
Description
Transmits lock/unlock operation to BCM.
DOOR KEY CYLINDER SWITCH
Diagnosis Procedure
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (driver side) connector.
3. Check voltage between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK DOOR KEY CYLINDER SWITCH SIGNAL CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and front door lock assembly (driver side) harness connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES - Replace BCM. See: Body Control Systems/Body Control Module/Service and Repair/With Intelligent Key System/Removal And Installation.
NO - Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES - GO TO 4.