Door Key Cylinder Switch

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 "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT. Refer to "DOOR LOCK : CONSULT Function (BCM DOOR LOCK)" CONSULT Function.





Is the inspection result normal?
YES- Key cylinder switch is OK.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

1.Turn ignition switch ON.
2.Check voltage between driver side door lock assembly (key cylinder switch) harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- GO TO 2.

2. CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL

Check voltage between power window main switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Replace power window main switch.Refer to "Removal and Installation" Service and Repair.

3. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect power window main switch connector and driver side door key lock assembly (key cylinder switch) connector.
3.Check continuity between power window main switch harness connector and driver side door lock assembly (key cylinder switch) harness connector.





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





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between driver side door lock assembly (key cylinder switch) harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

5. CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch.
Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 6.
NO- Replace driver side door lock assembly (key cylinder switch). Refer to "DOOR LOCK : Removal and Installation" Removal and Installation.

6. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END


Component Inspection


COMPONENT INSPECTION


1. CHECK DOOR KEY CYLINDER SWITCH

1.Turn ignition switch OFF.
2.Disconnector driver side door lock assembly (key cylinder switch) connector.
3.Check driver side door lock assembly (key cylinder switch).





Is the inspection result normal?
YES- Key cylinder switch is OK.
NO- Replace driver side door lock assembly (key cylinder switch). Refer to "DOOR LOCK : Removal and Installation" Removal and Installation.