Coupe

UNLOCK SENSOR

Description

Detects door lock condition of driver door.


Component Function Check


1. CHECK FUNCTION

With CONSULT
Check unlock sensor UNLK SEN -DR in "Data Monitor" mode.





Is the inspection result normal?
YES- Unlock sensor is OK.
NO- Refer to "Diagnosis Procedure".


Diagnosis Procedure

Regarding Wiring Diagram information, Power Door Lock System Coupe.

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 door lock assembly LH connector.





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

3. CHECK UNLOCK SENSOR GROUND CIRCUIT






Check continuity between 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

Refer to "Component Inspection".
Is the inspection result normal?
YES- GO TO 6
NO- Replace door lock assembly LH. Coupe.

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 door lock assembly LH. Coupe.