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 Quest. 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.
      CONTINUITY SPECIFICATION

      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.
    CONTINUITY SPECIFICATION

    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 Ground
    G03501257Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 2.
    2. NG: Repair harness or connector.
  2. CHECK AV COMMUNICATION SIGNAL 
    1. Connect display control unit connector and AV switch connector.
    2. Turn ignition switch ON.
    3. Check signal between display control unit harness connector M95 terminal 28 (V) and 30 (LG) with CONSULT-II or oscilloscope.
    1. 28 (V), 30 (LG) - Ground: Refer to TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT .

    OK or NG

    1. OK: Replace AV switch. Refer to REMOVAL AND INSTALLATION FOR AV SWITCH .
    2. NG: Replace display control unit. Refer to REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT .
      Fig 2: Checking Signal Between Display Control Unit Harness Connector M95 Terminal 28 (V) And 30 (LG)
      G03501258Courtesy of NISSAN MOTOR CO., U.S.A.
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