Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Accessories and Optional Equipment » Keyless Entry » Testing and Inspection » Component Tests and General Diagnostics » Unlock Sensor » Diagnosis Procedure » Coupe  
 
 
  Coupe  
 

UNLOCK SENSOR

Description

Detects door lock condition of driver door.

UNLOCK SENSOR

Diagnosis Procedure

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.

  

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

  

  1. 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.

  

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

  

Is the Inspection result normal?
YES >> GO TO 5
NO >> Replace BCM. Refer to See: Body and Frame\Body Control Systems\Body Control Module\Service and Repair.
5.CHECK UNLOCK SENSOR
Refer to See: Component Inspection\Coupe.
Is the Inspection result normal?
YES >> GO TO 6
NO >> Replace door lock assembly LH. Refer to See: Body and Frame\Locks\Power Locks\Service and Repair\Front Door Lock\Coupe.
6.CHECK INTERMITTENT INCIDENT
Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident.
>> Inspection End.