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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Audio, Visual & Navigation System) >> DTC/Circuit Diagnosis >> Front Camera Image Signal Circuit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY FRONT CAMERA POWER SUPPLY AND GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector and front camera connector.
    3. Check continuity between around view monitor control unit harness connector and front camera harness connector.
      CONTINUITY SPECIFICATION

      Around view monitor control unit Front camera Continuity
      Connector Terminals Connector Terminals
      M49 44 E50 2 Existed
      46 1
    4. Check continuity between around view monitor control unit harness connector and ground.
      CONTINUITY SPECIFICATION

      Around view monitor control unit Ground Continuity
      Connector Terminal
      M49 46 Not existed

      Is inspection result normal? 

      YES: Go to 2.

      NO: Repair harness or connector.

  2. CHECK VOLTAGE FRONT CAMERA POWER SUPPLY
    1. Connect around view monitor control unit connector and front camera connector.
    2. Turn ignition switch ON.
    3. Check voltage between around view monitor control unit harness connector.
      VOLTAGE SPECIFICATION

      (+) (-) Condition Voltage (Approx.)
      Around view monitor control unit
      Connector Terminal
      M49 46 Ground "CAMERA" switch is ON or shift position is "R". 6.0 V

      Is inspection result normal? 

      YES: Go to 3.

      NO: Replace around view monitor control unit. Refer to "REMOVAL AND INSTALLATION ".

  3. CHECK CONTINUITY FRONT CAMERA IMAGE SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector and front camera connector.
    3. Check continuity between around view monitor control unit harness connector and front camera harness connector.
      CONTINUITY SPECIFICATION

      Around view monitor control unit Front camera Continuity
      Connector Terminals Connector Terminals
      M49 41 E50 3 Existed
      42 4
    4. Check continuity between around view monitor control unit harness connector and ground.
      CONTINUITY SPECIFICATION

      Around view monitor control unit Ground Continuity
      Connector Terminals
      M49 41, 42 Not existed

      Is inspection result normal? 

      YES: Go to 4.

      NO: Repair harness or connector.

  4. CHECK FRONT CAMERA IMAGE SIGNAL
    1. Connect around view monitor control unit connector and front camera connector.
    2. Turn ignition switch ON.
    3. Check signal between around view monitor control unit harness connector.
      SIGNAL REFERENCE

      (+) (-) Condition Reference value
      Around view monitor control unit
      Connector Terminal Connector Terminal
      M49 41 M49 42 "CAMERA" switch is ON or shift position is "R".
      G05732118Courtesy of NISSAN MOTOR CO., U.S.A.

      Is inspection result normal? 

      YES: Replace around view monitor control unit. Refer to "REMOVAL AND INSTALLATION ".

      NO: Replace front camera. Refer to "REMOVAL AND INSTALLATION ".

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