Door & Lock

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. Scan Tool Testing and Procedures.





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


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.

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 connector and ground.





Is the inspection result normal?
YES- Replace main power window and door lock/unlock switch. Main Power Window And Door Lock/Unlock Switch. After that, refer to "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 connector and front door lock assembly LH (key cylinder switch) connector.





4.Check continuity between main power window and door lock/
unlock switch connector 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 connector 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.
.
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace front door lock assembly LH (key cylinder switch). Removal And Installation. After that, 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). Removal And Installation. After that, .


Special Repair Requirement


1. PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure.
Additional Service When Replacing Control Unit.
Is the inspection result normal?
YES- Inspection End.
NO- Check intermittent incident. Intermittent Incident.