Unlock Sensor

UNLOCK SENSOR

Component Function Check


1. CHECK FUNCTION

1.Select INTELLIGENT KEY of BCM using CONSULT.
2.Select UNLK SEN-DR in DATA MONITOR mode.
3.Check that the function operates normally according to the following conditions.





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


Diagnosis Procedure

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

1. CHECK UNLOCK SENSOR INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect front door lock assembly LH connector.
3.Check signal between front door lock assembly LH harness connector and ground with oscilloscope.





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

2. CHECK UNLOCK SENSOR CIRCUIT

1.Disconnect BCM connector.
2.Check continuity between BCM harness connector and front door lock assembly LH harness connector.





3.Check continuity between BCM harness connector and ground.





Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

3. CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly LH harness connector and ground.





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

4. CHECK UNLOCK SENSOR

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace front door lock assembly LH. Refer to "DOOR LOCK : Removal and Installation" Removal and Installation.

5. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- Inspection End.


Component Inspection


1. CHECK UNLOCK SENSOR

1.Turn ignition switch OFF.
2.Disconnect front door lock assembly LH connector.
3.Check continuity between front door lock assembly LH terminals.





Is the inspection result normal?
YES- Inspection End.
NO- Replace front door lock assembly LH. Refer to "DOOR LOCK : Removal and Installation" Removal and Installation.
Revision: March 20122013 Infiniti JX