2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

RGB Screen is Rolling (Except NAVI Screen)

WARNING: This page is about a different car, the 2004 Nissan Titan. 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 unit connector.
    3. Check continuity between display control unit and display unit.
      DISPLAY CONTROL UNIT AND DISPLAY UNIT TERMINALS CONTINUITY

      Terminals Continuity
      Display control unit Display unit
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M95 56 (G) M93 19 (G) Yes
      49 21
    4. Check continuity between display control unit and ground.
      DISPLAY CONTROL UNIT TERMINALS CONTINUITY

      Terminals Continuity
      Display control unit ---
      Connector Terminal (Wire color)
      M95 56 (G) Ground No
      49
      Fig 1: Checking Continuity Between Display Control Unit And Display Unit Connector Terminals
      G03513560Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 2.
    2. NG : Repair harness.
  2. CHECK RGB SYNCHRONIZING SIGNAL 
    1. Connect display control unit connector and display unit connector.
    2. Turn ignition switch ON.
    3. Check signal between display unit connector M93 terminals 19 (G) and 21 with CONSULT-II or oscilloscope.

      19 (G) - 21  : Refer to , "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".

      Fig 2: Checking Voltage Signal Between Display Unit Connector M93 Terminals 19 (G) And 21
      G03513561Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : Replace display unit. Refer to , "REMOVAL AND INSTALLATION OF DISPLAY UNIT ".
    2. NG : Replace display control unit. Refer to , "Removal and Installation of Display Control Unit ".
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.