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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1031 (Door & Lock) >> Component Diagnosis >> Trunk Lamp Switch >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK TRUNK LAMP SWITCH INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Check voltage between BCM connector and ground.
    VOLTAGE SPECIFICATION

    Terminals Trunk condition Voltage (V) (Approx.)
    (+) (-)
    BCM connector Terminal
    M21 130 Ground OPEN 0
    CLOSE
    G04888175Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 1: Checking Voltage Between BCM Connector And Ground
    G05046421Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  4

    NO: GO TO 2

  2. CHECK TRUNK LAMP SWITCH CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between BCM connector and trunk lamp switch and trunk release solenoid connector.
      CONTINUITY CHART

      BCM connector Terminal Trunk lamp switch and trunk release solenoid connector Terminal Continuity
      A: M21 130 B: T7 2 Yes
      Fig 2: Checking Continuity Between BCM Connector And Trunk Lamp Switch
      G05870265Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BCM connector and ground.
      CONTINUITY CHART

      BCM connector Terminal Ground Continuity
      A: M21 130 No

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness between BCM and trunk lamp switch and trunk release solenoid.

  3. CHECK TRUNK LAMP SWITCH GROUND CIRCUIT

    Check continuity between trunk lid lock assembly connector and ground.

    CONTINUITY CHART

    Trunk lamp switch and trunk release solenoid connector Terminal Ground Continuity
    T7 3 Yes
    Fig 3: Checking Continuity Between Trunk Lid Lock Assembly Connector And Ground
    G05870266Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO 4

    NO: Repair or replace trunk lamp switch and trunk release solenoid ground circuit.

  4. CHECK BCM OUTPUT SIGNAL
    1. Insure trunk remains closed during this step.
    2. Connect BCM connector.
    3. Check voltage between BCM connector and ground.
      VOLTAGE SPECIFICATION

      Terminals Voltage (V) (Approx.)
      (+) (-)
      BCM connector Terminal
      M21 130 Ground
      G04888175Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 4: Checking Voltage Between BCM Connector And Ground
      G05046421Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: GO TO 5

      NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

  5. CHECK TRUNK ROOM LAMP SWITCH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 6

    NO: Replace trunk lamp switch and trunk release solenoid.

  6. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    Inspection End.