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Check Unlock Sensor

  1. CHECK UNLOCK SENSOR POWER SUPPLY 

    With CONSULT-II 

    Check unlock sensor ("DOOR STAT SW") in "DATA MONITOR" mode.

    MONITOR ITEM CONDITION

    Monitor item Condition
    DOOR STAT SW Front door lock (driver side) LOCK: ON
    Front door lock (driver side) UNLOCK: OFF
    Fig 1: Display DATA MONITOR Mode
    G04145225Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between Intelligent Key unit connector and ground.

    VOLTAGE SPECIFICATIONS

    Terminals Front door lock (driver side) condition Voltage (V) (Approx.)
    (+) (-)
    Intelligent Key unit connector Terminal
    M32 26 Ground Locked Battery voltage
    Unlocked 0
    Fig 2: Checking Voltage Between Intelligent Key Unit Connector And Ground
    G04145226Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Unlock sensor is OK.

    NG: GO TO 2.

  2. CHECK UNLOCK SENSOR CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect Intelligent Key unit and front door lock assembly (driver side) connector.
    3. Check continuity between Intelligent Key unit connector and front door lock assembly (driver side) connector.
      CONTINUITY CONDITIONS

      A B Continuity
      Intelligent Key unit connector Terminal Front door lock assembly (driver side) connector Terminal
      M32 26 D14 3 Yes
    4. Check continuity between Intelligent Key unit connector and ground.
      CONTINUITY CONDITIONS

      A Ground Continuity
      Intelligent Key unit connector Terminal
      M32 26 No
    Fig 3: Checking Continuity Between Intelligent Key Unit Connector And Front Door Lock Assembly (Driver Side) Connector
    G04145227Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness between Intelligent Key unit and front door lock assembly (driver side).

  3. CHECK UNLOCK SENSOR GROUND CIRCUIT 

    Check continuity between front door lock assembly (driver side) connector and ground.

    CONTINUITY CONDITIONS

    Front door lock assembly (driver side) connector Terminal Ground Continuity
    D14 4 Yes

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace harness.

    Fig 4: Checking Continuity Between Front Door Lock Assembly (Driver Side) Connector And Ground
    G04145228Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL 
    1. Connect Intelligent Key unit harness connector.
    2. Check voltage between Intelligent Key unit connector and ground.
      VOLTAGE SPECIFICATIONS

      Terminals Voltage (V) (Approx.)
      (+) (-)
      Intelligent Key unit connector Terminal
      M32 26 Ground Battery voltage
    Fig 5: Checking Voltage Between Intelligent Key Unit Connector And Ground
    G04145229Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace front door lock assembly (driver side).

    NG: Replace Intelligent Key unit.

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