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Interior Room Lamp Control Does Not Operate

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK EACH SWITCH 

    CONSULT-III DATA MONITOR

    1. Select "INT LAMP" of BCM data monitor item.
    2. Check that switches listed in display item list turn ON-OFF linked with switch operation. Refer to CONSULT-III Functions (BCM)  for switches and their functions.

    OK or NG 

    OK: GO TO 2.

    NG: Inspect malfunctioning switch system.

  2. CHECK BETWEEN BCM AND MAP LAMP 

    CONSULT-III ACTIVE TEST

    1. Select "INT LAMP" of BCM (INT LAMP) active test item.
    2. With operating the test item, check the interior room lamp operation (When interior room lamp switch is in DOOR position).

    Interior room lamp should operate. 

    OK or NG 

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

    NG: GO TO 3.

  3. CHECK INTERIOR ROOM LAMP INPUT 
    1. Turn ignition switch OFF.
    2. Check voltage between interior room lamp harness connector R53 terminal 1 and ground.

      1 - Ground : Battery voltage. 

      Fig 1: Identifying Voltage Between Interior Room Lamp Harness Connector Terminal 1 And Ground
      G05222224Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  6.

    NG: GO TO 4.

  4. CHECK INTERIOR ROOM LAMP 
    1. Disconnect interior room lamp connector.
    2. Check continuity between interior room lamp.
      3. Fig 2: Identifying Continuity Between Interior Room Lamp
      G05222225Courtesy of NISSAN MOTOR CO., U.S.A.
    INTERIOR ROOM LAMP

    Interior room lamp Condition Continuity
    1 2 Interior room lamp switch is DOOR. Yes
    Interior room lamp switch is OFF or ON. No

    OK or NG 

    OK: GO TO 5.

    NG: Replace Interior room lamp.

  5. CHECK INTERIOR ROOM LAMP CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector M4 terminal 41 and interior room lamp harness connector R53 terminal 2.

      41 - 2 : Continuity should exist. 

      Fig 3: Identifying Continuity Between BCM Connector Terminal 41 And Interior Room Lamp Connector Terminal 2
      G05222226Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM if interior room lamp does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".

    NG: Repair harness or connector.

  6. CHECK INTERIOR ROOM LAMP CIRCUIT 
    1. Disconnect BCM connector and interior room lamp connector.
    2. Check continuity between BCM harness connector M4 terminal 48 and interior room lamp harness connector R53 terminal 1.

      48 - 1 : Continuity should exist. 

      Fig 4: Identifying Continuity Between BCM Connector Terminal 48 And Interior Room Lamp Connector Terminal 1
      G05222227Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM if interior room lamp does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".

    NG: Repair harness or connector.

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