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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 934 (Body, Lock & Security System) >> Vehicle Security (Theft Warning) System >> Diagnostic Procedure 1 >> 1-2 Trunk Lamp And Trunk Release Solenoid Switch Check

1-2 Trunk Lamp And Trunk Release Solenoid Switch Check

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK TRUNK LAMP SWITCH INPUT SIGNAL 

    With CONSULT-III 

    Check ("TRUNK SW") in "DATA MONITOR" mode with CONSULT-III.

    TRUNK LAMP SWITCH INPUT SIGNAL

    Monitor item Trunk condition
    TRUNK SW OPEN :ON
    CLOSE :OFF

    Without CONSULT-III 

    1. Turn ignition switch OFF.
    2. Check voltage between BCM harness connector M19 terminal 42 and ground.
      BCM HARNESS CONNECTOR M19 TERMINAL 42 AND GROUND

      Connector Terminals Trunk condition Voltage (V) (Approx.)
      (+) (-)
      M19 42 Ground CLOSE Battery voltage
      OPEN 0
      Fig 1: Checking Voltage Between BCM Harness Connector M19 Terminal 42 And Ground
      G04916818Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Trunk lamp switch circuit is OK.

    NG: GO TO 2.

  2. CHECK TRUNK LAMP SWITCH 
    1. Turn ignition switch OFF.
    2. Disconnect trunk lamp switch connector.
    3. Check continuity between trunk lamp switch terminals 1 and 2.
      TRUNK LAMP SWITCH TERMINALS 1 AND 2

      Terminals Trunk condition Continuity
      1 2 Closed No
      Open Yes
      Fig 2: Checking Continuity Between Trunk Lamp Switch Terminals 1 And 2
      G04916819Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 3.

      NG: Replace trunk lamp switch and trunk release solenoid.

  3. CHECK TRUNK LAMP SWITCH CIRCUIT 
    1. Disconnect BCM connector M19.
    2. Check continuity between BCM harness connector M19 terminal 42 and trunk lamp switch harness connector (B) T103 terminal 1.

      42 - 1: Continuity should exist. 

      Fig 3: Checking Trunk Lamp Switch Circuit
      G04916820Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BCM harness connector (A) M19 terminal 42 and ground.

      42 - Ground: Continuity should not exist. 

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace harness between BCM and trunk lamp switch.

  4. CHECK TRUNK LAMP SWITCH GROUND CIRCUIT 

    Check continuity between trunk lamp switch harness connector T103 terminal 2 and ground.

    2 - Ground: Continuity should exist. 

    Fig 4: Checking Continuity Between Trunk Lamp Switch Harness Connector T103 Terminal 2 And Ground
    G04916821Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Check connection of harness and connector.

    NG: Repair or replace trunk lamp switch ground circuit.