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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 822 (Body, Lock & Security System) >> Power Door Lock System >> Front Door Lock Assembly LH (Actuator) Check

Front Door Lock Assembly LH (Actuator) Check

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DOOR LOCK ACTUATOR SIGNAL 
    1. Turn ignition switch OFF.
    2. Check voltage between BCM connector M20 terminals 59, 65 and ground.
      VOLTAGE CHART

      Connector Terminals Condition Voltage (V) (Approx.)
      (+) (-)
      M20 59 Ground Driver door lock/unlock switch is turned to UNLOCK 0 --> Battery voltage
      65 Driver door lock/unlock switch is turned to LOCK 0 --> Battery voltage
      Fig 1: Checking Voltage Between BCM Connector M20 Terminals 59, 65 And Ground
      G04902470

    OK or NG 

    OK: GO TO 2.

    NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

  2. CHECK DOOR LOCK ACTUATOR HARNESS 
    1. Disconnect BCM and front door lock assembly LH (actuator).
    2. Check continuity between BCM connector M20 terminals 59, 65 and front door lock assembly LH (actuator) connector D14 terminals 1, 2.
      CONTINUITY REFERENCE CHART

      Connector Terminals Connector Terminals Continuity
      M20 59 D14 2 Yes
      65 1 Yes
    3. Check continuity between BCM connector M20 terminals 59, 65 and ground.
      CONTINUITY REFERENCE CHART

      Connector Terminals Continuity
      M20 59 Ground No
      65 No
      Fig 2: Checking Continuity Between BCM Connector M20 Terminals 59, 65 And Ground
      G04895680

    OK or NG 

    OK: Replace front door lock assembly LH (actuator). Refer to "REMOVAL AND INSTALLATION ".

    NG: Repair or replace harness.