2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

RGB Screen is Not Shown

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector and display connector.
    3. Check continuity between display control unit harness connector M43 terminal 49, 51 (B), 53 (W), 55 (R) and display harness connector M38 terminal 21, 9 (B), 20 (W), 8 (R).
      Fig 1: Check Continuity Between Harness Connector And Display Harness Connector
      G03492586Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY CHECK CHART

      Terminals Continuity
      Display control unit Display
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M43 49 M38 21 Yes
      51 (B) 9 (B)
      53 (W) 20 (W)
      55 (R) 8 (R)
    4. Check continuity between display control unit harness connector M43 terminal 49, 51 (B), 53 (W), 55 (R) and ground.

      Continuity should not exist. 

      Fig 2: Checking Continuity Between Display Control Unit Harness Connector And Ground
      G03492587Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 2.
    2. NG: Repair harness or connector.
  2. CHECK RGB AREA SIGNAL 
    1. Connect display control unit connector and display connector.
    2. Turn ignition switch ON.
    3. Push the "TRIP" button.
    4. Check signal between display control unit connector M43 terminals 51 (B) and 49 with CONSULT-II or oscilloscope.

      51 (B) - 49: Refer to " TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT   ". 

      Fig 3: Checking Signal Between Display Control Unit Connector Terminals
      G03492588Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 3.
    2. NG: Replace display control unit.
  3. CHECK VERTICAL SYNCHRONIZING SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between display control unit connector M43 terminals 53 (W) and 49 with CONSULT-II or oscilloscope.

      53 (W) - 49: Refer to ," TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT   ". 

      Fig 4: Checking Signal Between Display Control Unit Connector Terminals
      G03492589Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 4.
    2. NG: Replace display.
  4. CHECK HORIZONTAL SYNCHRONIZING SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between display control unit connector M43 terminals 55 (R) and 49 with CONSULT-II or oscilloscope.

      55 (R) - 49: Refer to " TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT   ". 

      Fig 5: Checking Signal Between Display Control Unit Connector Terminals
      G03492590Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace display control unit.
    2. NG: Replace display.
Factory Service Tools

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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.

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