2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Operation Procedure

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start the engine.
  2. Turn the audio system off.
  3. While pressing the "PAUSE/MUTE" button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.)
    • Shifting from current screen to previous screen is performed by pressing "PREV" button.
    Fig 1: Identifying "PAUSE/MUTE" Button And "VOLUME" Control Dial
    G03360079Courtesy of NISSAN MOTOR CO., U.S.A.
  4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
  5. Select "CAN DIAG SUPPORT MONITOR".
    Fig 2: Displaying "SELF DIAGNOSIS" Screen
    G03360080Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Display status of CAN communication.
    DISPLAY STATUS OF CAN COMMUNICATION CHART

    Item Content Error counter (Reference value)
    CANCOMM OK/NG 0-50
    CAN_CIRC_1 OK/UNKWN 0-50
    CAN_CIRC_2 OK/UNKWN 0-50
    CAN_CIRC_3 OK/UNKWN 0-50
    CAN_CIRC_4 OK/UNKWN 0-50
    CAN_CIRC_5 OK/UNKWN 0-50
    CAN_CIRC_6 OK/UNKWN 0-50
    CAN_CIRC_7 OK/UNKWN 0-50
    CAN_CIRC_8 OK/UNKWN 0-50
    CAN_CIRC_9 OK/UNKWN 0-50
    Fig 3: Displaying "CAN DIAG SUPPORT MONITOR" Screen
    G03360081Courtesy of NISSAN MOTOR CO., U.S.A.
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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