2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE

Front Room/Map Lamp Assembly Control Does Not Operate

WARNING: This page is about a different car, the 2006 Nissan Titan. 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.

    Fig 1: CONSULT II Display - Data Monitor
    G04136301Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 2.

    NG: Inspect malfunctioning switch system.

  2. ACTIVE TEST 
    1. Select "BCM" on CONSULT-II. Select "INT LAMP" active test.
    2. When switch is in DOOR position, use active test to make sure front room/map lamp operates.

      Room lamps should turn on. 

      3. Fig 2: CONSULT-II Display - ACTIVE TEST
      G04188733Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM. Refer to "BCM ".

    NG: GO TO 3.

  3. CHECK FRONT ROOM/MAP LAMP ASSEMBLY INPUT 
    1. Turn ignition switch OFF.
    2. Check voltage between front room/map lamp assembly harness connector R102 terminal 6 and ground.

      6 - Ground: Battery voltage should exist. 

      3. Fig 3: Checking Voltage Between Front Room/Map Lamp Assembly Harness Connector R102 Terminal 6 And Ground
      G04188734Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG: GO TO  5.

  4. CHECK FRONT ROOM/MAP LAMP ASSEMBLY CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector M20 terminal 63 (L) and front room/map lamp assembly harness connector R102 terminal 1 (L).

      63 (L) - 1 (L): Continuity should exist. 

      3. Fig 4: Checking Continuity Between BCM Harness Connector M20 Terminal 63 And Front Room/Map Lamp Assembly Harness Connector R102 Terminal 1
      G04188735Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace front room/map lamp assembly.

    NG: Repair harness or connector.

  5. CHECK FRONT ROOM/MAP LAMP INPUT CIRCUIT 
    1. Disconnect BCM connector and front room/map lamp connector.
    2. Check continuity between BCM harness connector M20 terminal 56 (R/G) and front room/map lamp assembly harness connector R102 terminal 6.

      56 - 6: Continuity should exist. 

      3. Fig 5: Checking Continuity Between BCM Harness Connector M20 Terminal 56 And Front Room/Map Lamp Assembly Harness Connector R102 Terminal 6
      G04188736Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM if front room/map lamp does not work after setting the connector again. Refer to "BCM ".

    NG: Repair harness or connector between BCM and front room/map lamp.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.