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Home >> Infiniti >> 2011 >> FX50 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (With Navigation - Twin Monitor) -- FX35/FX50 >> DTC/Circuit Diagnosis >> Composite Image Signal Circuit (Av Control Unit To Front Display Unit) >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector and front display unit connector.
    3. Check continuity between AV control unit harness connector and front display unit harness connector.
      TERMINAL CONTINUITY REFERENCE CHART

      AV control unit Front display unit Continuity
      Connector Terminal Connector Terminal
      M210 68 M195 18 Existed
    4. Check continuity between AV control unit harness connector and ground.
      TERMINAL CONTINUITY REFERENCE CHART

      AV control unit Ground Continuity
      Connector Terminal
      M210 68 Not existed

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair harness or connector.

  2. CHECK AUX COMPOSITE SIGNAL
    1. Connect AV control unit connector and front display unit connector.
    2. Turn ignition switch ON.
    3. Check signal between auxiliary input jacks harness connector and ground.
      CONNECTOR TERMINAL REFERENCE CHART

      (+) (-) Condition Reference value
      AV control unit
      Connector Terminal
      M210 68 Ground At DVD image is displayed.
      G04890020

      Is the inspection result normal? 

      YES: Replace front display unit. Refer to "EXPLODED VIEW ".

      NO: Replace AV control unit. Refer to "EXPLODED VIEW ".

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