Back Door Request Switch

BACK DOOR REQUEST SWITCH

Description

Transmits lock/unlock operation to BCM.


Component Function Check


1. CHECK FUNCTION

Check back door opener request switch ("REQ SW -BD/TR ") in Data Monitor mode.





Is the inspection result normal?
YES- Back door opener request switch is OK.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK BCM OUTPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect back door opener request switch connector.
3.Check signal between back door opener request switch harness connector and ground with oscilloscope.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK BACK DOOR OPENER REQUEST SWITCH CIRCUIT

1.Disconnect BCM connector.
2.Check continuity between BCM harness connector and back door opener request switch harness connector.





3.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- Replace BCM. Refer to "Exploded View" Exploded View.
NO- Repair or replace harness.

3. CHECK BACK DOOR OPENER REQUEST SWITCH GROUND CIRCUIT

Check continuity between back door opener request switch harness connector and ground.





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

4. CHECK BACK DOOR OPENER REQUEST SWITCH

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace back door opener request switch. Refer to "Removal and Installation" Removal and Installation.

5. CHECK INTERMITTENT INCIDENT

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


Component Inspection


1. CHECK BACK DOOR OPENER REQUEST SWITCH

1.Turn ignition switch OFF.
2.Disconnect back door opener request switch connector.
3.Check continuity between back door opener request switch assembly terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace back door opener request switch. Refer to "Removal and Installation" Removal and Installation.