Diagnosis Procedure

DOOR LOCK AND UNLOCK SWITCH


DRIVER SIDE : Description

Transmits door lock/unlock operation to BCM.




DOOR LOCK AND UNLOCK SWITCH


DRIVER SIDE : Diagnosis Procedure

Regarding Wiring Diagram, Electrical Diagrams.
1.CHECK POWER WINDOW SWITCH OUTPUT SIGNAL





1. Read voltage signal between BCM connector and ground with oscilloscope when door lock and unlock switch (driver side) is turned "LOCK" or "UNLOCK".
2. Check that signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch (driver side) is turned to "LOCK" or "UNLOCK".





Is the inspection result normal?
YES - GO TO 4
NO - GO TO 2
2.CHECK POWER WINDOW SWITCH GROUND
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch connector.





3. 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 POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM connector.





2. Check continuity between BCM connector and main power window and door lock/unlock switch connector.





3. Check continuity between BCM connector and ground.






Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- Inspection End.