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Ignition Keyhole Illumination Control Does Not Operate

WARNING: This page is about a different car, the 2005 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: Identifying Data Monitor Display
    G02386500Courtesy 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

    Fig 2: Identifying "IGN ILLUM" On Active Test Display
    G02386501Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK IGNITION KEYHOLE ILLUMINATION INPUT 
    1. Check voltage between ignition keyhole illumination harness connector M150 terminal + (R/G) and ground.
      • + (R/G) - Ground: Battery voltage should exist. 

    OK or NG

    • OK: GO TO 4.
    • NG: GO TO 6.
    Fig 3: Checking Voltage Between Ignition Keyhole Illumination Harness Connector M150 Terminal + (R/G) And Ground
    G02386502Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK IGNITION KEYHOLE ILLUMINATION BULB 
    1. Disconnect ignition keyhole illumination connector.
    2. 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: Checking Continuity Between Ignition Keyhole Illumination Terminals + And -
    G02386503Courtesy 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 (BR/W) and ignition keyhole illumination harness connector M150 terminal - (BR/W).
      • - (BR/W) - 1 (BR/W): Continuity should exist. 

    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.
    Fig 5: Checking Continuity Between BCM Harness Connector M18 Terminal 1 And Ignition Keyhole Illumination Harness Connector M150 Terminal -
    G02386504Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK IGNITION KEYHOLE ILLUMINATION CIRCUIT 
    1. Disconnect BCM connector and keyhole illumination connector.
    2. Check continuity between BCM harness connector M20 terminal 56 (R/G) and ignition keyhole illumination harness connector M150 terminal + (R/G).
      • + (R/G) - 56 (R/G): Continuity should exist. 

    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.
    Fig 6: Checking Continuity Between BCM Harness Connector M20 Terminal 56 And Ignition Keyhole Illumination Harness Connector M150 Terminal +
    G02386505Courtesy of NISSAN MOTOR CO., U.S.A.
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