Security Control System

KEY CYLINDER SWITCH





Description
The main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.




Component Function Check
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT-III. Door Lock.





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




Diagnosis Procedure
Regarding Wiring Diagram information, Vehicle Security System.
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch ON.





2. Check voltage between main power window and door lock/unlock switch harness connector D7 terminal 4, 6 and ground.





Is the inspection result normal?
YES - Replace main power window and door lock/unlock switch. LH&RH Front Window Anti-Pinch. After that, LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch, "ADDITIONAL SERVICE WHEN REPLACING CONTROL
UNIT : Special Repair Requirement".
NO - GO TO 2
2.CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch connector and front door lock assembly LH
(key cylinder switch) connector.





3. Check continuity between main power window and door lock/unlock switch harness connector D7 (A) terminal 4, 6 and front door lock assembly LH (key cylinder switch) harness connector
D10 (B) 5, 6.





4. Check continuity between main power window and door lock/unlock switch harness connector D7 (A) 4, 6 and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT





Check continuity between front door lock assembly LH harness connector D10 terminal 4 and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch. SEE Component Inspection.
Is the inspection result normal?
YES - Check intermittent incident. Intermittent Incident.
NO - Replace front door lock assembly LH (key cylinder switch). Exploded View Removal And Installation, "FRONT DOOR
LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch LH&RH Front Window Anti-Pinch, "ADDITIONAL SERVICE WHEN
REPLACING CONTROL UNIT : Special Repair Requirement".




Component Inspection

COMPONENT INSPECTION
1.CHECK DOOR KEY CYLINDER SWITCH





Check front door lock assembly LH (key cylinder switch).





Is the inspection result normal?
YES - Key cylinder switch is OK.
NO - Replace front door lock assembly LH (key cylinder switch). Exploded View Removal And Installation, "FRONT DOOR
LOCK : Removal and Installation".




Special Repair Requirement
1.PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure. LH&RH Front Window Anti-Pinch.
Is the inspection result normal?
YES - Inspection end.
NO - Check intermittent incident. Intermittent Incident.