2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

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

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 AV SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector and AV switch connector.
    3. Check continuity between display control unit and AV switch.
      DISPLAY CONTROL UNIT AND AV SWITCH TERMINALS CONTINUITY

      Terminals Continuity
      Display control unit AV switch
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M95 28 (V) M98 6 (V) Yes
      30 (LG) 8 (LG)
    4. Check continuity between display control unit and ground.
      DISPLAY CONTROL UNIT TERMINALS CONTINUITY

      Terminals Continuity
      Display control unit ---
      Connector Terminal (Wire color)
      M95 28 (V) Ground No
      30 (LG)
      Fig 1: Checking Continuity Between Display Control Unit And AV Switch Terminals
      G03513540Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 2.
    2. NG : Repair harness or connector.
  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 

    1. OK : INSPECTION END.
    2. NG : Replace display control unit. Refer to , "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".
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