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Home >> Infiniti >> 2009 >> G37 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (Base Without Navigation) -- Convertible >> DTC/Circuit Diagnosis >> Horizontal Synchronizing (Hp) Signal Circuit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) 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.
      CONTINUITY SPECIFICATION

      Display unit AV control unit Continuity
      Connector Terminal Connector Terminal
      M71 8 M83 45 Existed
    4. Check continuity between display unit harness connector and ground.
      CONTINUITY SPECIFICATION

      Display unit Ground Continuity
      Connector Terminal
      M71 8 Not existed

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair harness or connector.

  2. CHECK HORIZONTAL SYNCHRONIZING (HP) 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.
      SIGNAL SPECIFICATION

      (+) (-) Reference value
      Display unit
      Connector Terminal
      M71 8 Ground
      G04923333Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: Replace AV control unit.

      NO: Replace display unit.

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