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Home >> Infiniti >> 2012 >> FX35 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Audio, Visual, Navigation System (CROSSCABRIOLET)) >> BOSE Audio Without Navigation >> DTC/Circuit Diagnosis >> Camera Image Signal Circuit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY CAMERA POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector and rear view camera connector.
    3. Check continuity between AV control unit harness connector and rear view camera harness connector.
      CONTINUITY REFERENCE CHART

      AV control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M173 73 D192 1 Existed
    4. Check continuity between AV control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      AV control unit Ground Continuity
      Connector Terminal
      M173 73 Not existed

      Is inspection result normal? 

      YES: GO TO 2.

      NO: Repair harness or connector.

  2. CHECK VOLTAGE CAMERA POWER SUPPLY
    1. Connect AV control unit connector and rear view camera connector.
    2. Turn ignition switch ON.
    3. Shift the selector lever to "R".
    4. Check voltage between AV control unit harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Condition Voltage (Approx.)
      AV control unit
      Connector Terminal
      M173 73 Ground Selector lever is in "R". 6.0 V

      Is inspection result normal? 

      YES: GO TO 3.

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

  3. CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector and rear view camera connector.
    3. Check continuity between AV control unit harness connector and rear view camera harness connector.
      CONTINUITY REFERENCE CHART

      AV control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M173 62 D192 3 Existed
    4. Check continuity between AV control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      AV control unit Ground Continuity
      Connector Terminal
      M173 62 Not existed

      Is inspection result normal? 

      YES: GO TO 4.

      NO: Repair harness or connector.

  4. CHECK CAMERA IMAGE SIGNAL
    1. Connect AV control unit connector and rear view camera connector.
    2. Turn ignition switch ON.
    3. Shift the selector lever to "R".
    4. Check signal between AV control unit harness connector and ground.
      SIGNAL REFERENCE CHART

      (+) (-) Condition Reference value
      AV control unit
      Connector Terminal
      M173 62 Ground At camera image is displayed.
      G04890020

      Is inspection result normal? 

      YES: Replace AV control unit. Refer to "EXPLODED VIEW ".

      NO: Replace rear view camera. Refer to "REMOVAL AND INSTALLATION ".

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