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Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect display unit connector and AV control unit connector.
    3. Check continuity between display unit harness connector and AV control unit harness connector.
      TERMINALS CONTINUITY SPECIFICATION

      Display unit AV control unit Continuity
      Connector Terminal Connector Terminal
      M71 17 M83 40 Existed
    4. Check continuity between display unit harness connector and ground.
      TERMINALS CONTINUITY SPECIFICATION

      Display unit Ground Continuity
      Connector Terminal
      M71 17 Not existed

    Is the inspection result normal? 

    YES: GO TO  2.

    NO: Repair harness or connector.

  2. CHECK RGB (R: RED) SIGNAL 
    1. Connect display unit connector and AV control unit connector.
    2. Turn ignition switch ON.
    3. Check signal between display unit harness connector and ground.
      TERMINALS REFERENCE

      (+) (-) Condition Reference value
      Display unit
      Connector Terminal
      M71 17 Ground Start confirmation/adjustment mode, and then display color bar by selecting "Color Spectrum Bar" on DISPLAY DIAGNOSIS screen.
      G05731565Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Replace display unit.

    NO: Replace AV control unit.