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Ignition Keyhole Illumination Control Does Not Operate

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK EACH SWITCH 

    Select "BCM" on CONSULT-II. With "INT LAMP" data monitor, make sure switches listed in display item list turn ON-OFF linked with switch operation. Refer to "DISPLAY ITEM LIST " for switches and their functions.

    OK or NG 

    OK: GO TO 2.

    NG: Inspect malfunctioning switch system.

    Fig 1: CONSULT II Display - Data Monitor
    G04136301Courtesy of NISSAN MOTOR CO., U.S.A.
  2. ACTIVE TEST 
    1. Select "BCM" on CONSULT-II. Select "INT LAMP".
    2. Select "IGN ILLUM" active test to make sure lamp operates.

    OK or NG 

    OK: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

    NG: GO TO 3.

    Fig 2: CONSULT-II Display Screen - ACTIVE TEST
    G04200969Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK IGNITION KEYHOLE ILLUMINATION INPUT 
    1. Check voltage between ignition keyhole illumination harness connector M25 terminal + and ground.

      + - Ground: Battery voltage should exist. 

      Fig 3: Identifying Voltage Between Ignition Keyhole Illumination Connector M25 Terminal And Ground
      G04200970Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG: GO TO  6.

  4. CHECK IGNITION KEYHOLE ILLUMINATION BULB 
    1. Turn ignition switch OFF.
    2. Disconnect ignition keyhole illumination connector.
    3. Check continuity between ignition keyhole illumination terminals + and - (A)(early production) or (B)(late production).

      + - -: Continuity should exist. 

      Fig 4: Identifying Continuity Between Ignition Keyhole Illumination Terminals
      G04200971Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG: Replace ignition keyhole illumination bulb.

  5. CHECK IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector M18 terminal 1 and ignition keyhole illumination harness connector M25 terminal -(B)(early production) or (C)(late production).

      - - 1: Continuity should exist. 

      Fig 5: Identifying Continuity Between BCM And Ignition Keyhole Illumination Connector Terminals
      G04200972Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM if ignition keyhole illumination does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".

    NG: Repair harness or connector.

  6. CHECK IGNITION KEYHOLE ILLUMINATION POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and ignition keyhole illumination connector.
    3. Check continuity between BCM harness connector M19 terminal 41 and ignition keyhole illumination harness connector M25 (B)(early production) or (C)(late production) terminal +.

      + - 41: Continuity should exist. 

      Fig 6: Identifying Continuity Between BCM And Ignition Keyhole Illumination Connector Terminals
      G04200973Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM if ignition keyhole illumination does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".

    NG: Repair harness or connector.

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