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. Door Lock.





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


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. 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 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.
.
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, refer to "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). Removal And Installation.


Special Repair Requirement


1. PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure.
Special Repair Requirement.
Is the inspection result normal?
YES- Inspection end.
NO- Check intermittent incident. Intermittent Incident.