Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Accessories and Optional Equipment » Antitheft and Alarm Systems » Testing and Inspection » Component Tests and General Diagnostics » Key Cylinder Switch » Diagnosis Procedure (With LH And RH Anti-Pinch) » Coupe  
 
 
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KEY CYLINDER SWITCH

Description

For vehicles equipped with LH and RH anti-pinch system, the main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.
For vehicles equipped with LH anti-pinch system only, the door lock assembly LH (key cylinder switch) transmits the LOCK or UNLOCK signal directly to the BCM.

KEY CYLINDER SWITCH

Diagnosis Procedure (With LH and RH Anti-Pinch)

1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

  1. Turn ignition switch ON.

  

  1. Check voltage between main power window and door lock/unlock switch connector and ground.

  

Is the Inspection result normal?
YES >> Replace main power window and door lock/unlock switch. Refer to See: Sensors and Switches\Sensors and Switches - Windows and Glass\Power Window Switch\Service and Repair\LH Only Anti-Pinch-Coupe.
NO >> GO TO 2
2.CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect main power window and door lock/unlock switch connector and door lock assembly LH (key cylinder switch) connector.

  

  1. Check continuity between main power window and door lock/unlock switch connector and door lock assembly LH (key cylinder switch) connector.

  

  1. Check continuity between main power window and door lock/ unlock switch connector and ground.

  

Is the Inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH 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 DOOR KEY CYLINDER SWITCH
Check door key cylinder switch. Refer to See: Component Inspection\Coupe.
Is the Inspection result normal?
YES >> Check intermittent incident. Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident.
NO >> Replace door lock assembly LH (key cylinder switch). Refer to See: Body and Frame\Locks\Power Locks\Service and Repair\Front Door Lock\Coupe.