Unlock Sensor

UNLOCK SENSOR

Description

Detects door lock condition of driver door.


Component Function Check


1. CHECK FUNCTION

With CONSULT
Check unlock sensor UNLK SENDR in "Data Monitor" mode.





Is the inspection result normal?
YES- Unlock sensor is OK.
NO- .


Diagnosis Procedure

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

1. CHECK UNLOCK SENSOR POWER SUPPLY






Check signal between BCM connector and ground with oscilloscope.





Is the inspection result normal?
YES- GO TO 6
NO- GO TO 2

2. CHECK UNLOCK SENSOR CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM and front door lock assembly LH connector.





3.Check continuity between BCM connector and front door lock assembly LH connector.





4.Check continuity between BCM connector and ground.





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace harness between BCM and front door lock assembly LH.

3. CHECK UNLOCK SENSOR 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 BCM OUTPUT SIGNAL

1.Connect BCM harness connector.





2.Check signal between BCM connector and ground with oscilloscope.





Is the inspection result normal?
YES- GO TO 5
NO- Replace BCM. Service and Repair

5. CHECK UNLOCK SENSOR

.
Is the inspection result normal?
YES- GO TO 6
NO- Replace front door lock assembly LH. Removal And Installation.

6. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- Inspection End.


Component Inspection


1. CHECK UNLOCK SENSOR






Check unlock sensor.





Is the inspection result normal?
YES- Inspection End.
NO- Replace front lock assembly LH. Removal And Installation.