DLK

DOOR KEY CYLINDER SWITCH

Description
Power window main switch detects condition of the door key cylinder switch and transmits to BCM as the
LOCK or UNLOCK signals.

Component Function Check
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check ("KEY CYL LK-SW", "KEY CYL UN-SW") in BCM "Data Monitor" mode using CONSULT-III.

Is the inspection result normal?
YES - Door key cylinder switch is OK.
NO - SEE Diagnosis Procedure.

Diagnosis Procedure
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect driver side door lock assembly connector.
3. Check voltage between driver side door lock assembly 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 power window main switch connector.
2. Check continuity between power window main switch harness connector and driver side door lock assembly harness connector.

3. Check continuity between power window main switch harness connector and ground.

Is the inspection result normal?
YES - Replace power window main switch. Service and Repair.
NO - Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between driver side door lock assembly harness connector and ground.

Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK DOOR KEY CYLINDER SWITCH
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace door key cylinder switch (driver side door lock assembly). Removal And Installation.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END

Component Inspection

COMPONENT INSPECTION
1.CHECK DOOR KEY CYLINDER SWITCH
1. Turn ignition switch OFF.
2. Disconnect driver side door lock assembly terminal.
3. Check continuity between driver side door lock assembly terminals.

Is the inspection result normal?
YES - INSPECTION END
NO - Replace door key cylinder switch (driver side door lock assembly). Removal And Installation.