LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1721 (Audio, Visual, Navigation & Telephone System) >> Navigation System >> AV Communication Line Check (Between Display Control Unit and AV Switch)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

AV Communication Line Check (Between Display Control Unit and AV Switch)

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK AV SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector M95 and AV switch connector M98.
    3. Check continuity between display control unit and AV switch.
      CONNECTOR TERMINALS CONTINUITY REFERENCE

      Terminals Continuity
      Display control unit AV switch
      Connector Terminal Connector Terminal
      M95 28 M98 6 Yes
      30 8
    4. Check continuity between display control unit and ground.
    CONNECTOR TERMINALS CONTINUITY REFERENCE

    Terminals Continuity
    Display control unit -
    Connector Terminal
    M95 28 Ground No
    30

    OK or NG 

    OK: GO TO 2.

    NG: Repair harness or connector.

    Fig 1: Checking Continuity Between Display Control Unit And Ground
    G04177836Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK SELF-DIAGNOSIS OF DCU 
    1. Replace AV switch.
    2. Connect display control unit connector and AV switch connector.
    3. Turn ignition switch ON.
    4. Start self-diagnosis of DCU and check the self-diagnosis result.

    OK or NG 

    OK: Inspection End.

    NG: Replace display control unit. Refer to , "DISPLAY CONTROL UNIT "