2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Map Lamp Control Does Not Operate

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MAP LAMP INPUT 
    1. Turn ignition switch OFF.
    2. Check voltage between map lamp harness connector R14 terminal 7 and ground.

      7 - Ground: Battery voltage should exist. 

    Fig 1: Checking Voltage Between Interior Room Lamp Connector R14 Terminal 7 And Ground
    G04917934Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 2.

    NG: GO TO  4.

  2. CHECK MAP LAMP 
    1. Disconnect map lamp connector.
    2. Check continuity between map lamp terminals.
      MAP LAMP

      Map lamp Condition Continuity
      Terminal
      4 7 Map lamp switch is ON Yes
      Map lamp switch is OFF No
    Fig 2: Checking Continuity Between Map Lamp Terminals
    G04917939Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Replace map lamp.

  3. CHECK MAP LAMP CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between map lamp harness connector R14 terminal 4 and ground.

      4 - Ground: Continuity should exist. 

    Fig 3: Checking Continuity Between Map Lamp Connector R14 Terminal 4 And Ground
    G04917940Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Check connector for proper connection. Repair as necessary.

    NG: Repair harness or connector.

  4. CHECK MAP LAMP CIRCUIT 
    1. Disconnect BCM connector and map lamp connector.
    2. Check continuity between BCM connector M20 (A) terminal 56 and map lamp connector R14 (B) terminal 7.

      56 - 7: Continuity should exist. 

    Fig 4: Checking Continuity Between BCM Connector M20 Terminal 56 And Map Lamp Connector R14 Terminal 7
    G04917937Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

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

    NG: Repair harness or connector.

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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.