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Home >> Infiniti >> 2011 >> M37 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Audio, Visual & Navigation System (BOSE Audio With 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 2013 Infiniti M56 and 2013 Infiniti M37. 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.
      AV control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M209 22 T5 1 Existed
    4. Check continuity between AV control unit harness connector and ground.
      AV control unit Ground Continuity
      Connector Terminal
      M209 22 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.
      (+) (-) Condition Voltage (Approx.)
      AV control unit
      Connector Terminal
      M209 22 Ground Shift position is "R". 6.0 V

      Is inspection result normal? 

      YES: GO TO 3.

      NO: Replace AV control unit.

  3. CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect display unit connector and rear view camera connector.
    3. Check continuity between display unit harness connector and rear view camera harness connector.
      Display unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M215 8 T5 3 Existed
    4. Check continuity between display unit harness connector and ground.
      Display unit Ground Continuity
      Connector Terminal
      M215 8 Not existed

      Is inspection result normal? 

      YES: GO TO 4.

      NO: Repair harness or connector.

  4. CHECK CAMERA IMAGE SIGNAL 
    1. Connect display unit connector and rear view camera connector.
    2. Turn ignition switch ON.
    3. Shift the selector lever to "R".
    4. Check signal between display unit harness connector and ground.
      (+) (-) Condition Reference value
      Display unit
      Connector Terminal
      M215 8 Ground At rear view camera image is displayed.
      G08893447

      Is inspection result normal? 

      YES: Replace display unit. Refer to "REMOVAL AND INSTALLATION ".

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

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