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Ignition Keyhole Illumination Control Does Not Operate

WARNING: This page is about a different car, the 2006 Infiniti QX56. 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.

      Ignition keyhole illumination should turn ON. 

    OK or NG 

    • OK : Replace BCM. Refer to "BCM ".
    • NG : GO TO 3.
      Fig 2: Consult-II Screen Display - Active Test
      G04136315Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK IGNITION KEYHOLE ILLUMINATION INPUT 
    1. Check voltage between ignition keyhole illumination harness connector M150 terminal + and ground.

      + - Ground : Battery voltage should exist. 

    OK or NG 

    • OK : GO TO 4.
    • NG : GO TO  6.
      Fig 3: Identifying Voltage Between Ignition Keyhole Illumination Harness Connector M150 Terminal + And Ground
      G04136316Courtesy of NISSAN MOTOR CO., U.S.A.
  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 -.

      + - - : Continuity should exist. 

    OK or NG 

    • OK : GO TO 5.
    • NG : Replace ignition keyhole illumination.
      Fig 4: Identifying Continuity Between Ignition Keyhole Illumination Terminals + And -
      G04136317Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK IGNITION KEYHOLE ILLUMINATION CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector M18 terminal 1 and ignition keyhole illumination harness connector M150 terminal -.

      - - 1 : Continuity should exist. 

    OK or NG 

    • OK : Replace BCM if ignition keyhole illumination does not work after setting the connector again. Refer to "BCM ".
    • NG : Repair harness or connector.
      Fig 5: Identifying Continuity Between BCM Terminal 1 And Ignition Keyhole Illumination Harness Connector M150 Terminal -
      G04136318Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK IGNITION KEYHOLE ILLUMINATION CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and keyhole illumination connector.
    3. Check continuity between BCM harness connector M20 terminal 56 and ignition keyhole illumination harness connector M150 terminal +.

      + - 56 : Continuity should exist. 

    OK or NG 

    • OK : Replace BCM if ignition keyhole illumination does not work after setting the connector again. Refer to "BCM ".
    • NG : Repair harness or connector.
      Fig 6: Identifying Continuity Between BCM Terminal 56 And Ignition Keyhole Illumination Terminal +
      G04136319Courtesy of NISSAN MOTOR CO., U.S.A.
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