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Home >> Infiniti >> 2012 >> G25 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Audio, Visual And 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 2011 Nissan 370Z. 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 SPECIFICATION

      AV control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M85 22 B157 1 Existed
    4. Check continuity between AV control unit harness connector and ground.
    CONTINUITY SPECIFICATION

    AV control unit Ground Continuity
    Connector Terminal
    M85 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.
    VOLTAGE SPECIFICATION

    (+) (-) Condition Voltage (Approx.)
    AV control unit
    Connector Terminal
    M85 22 Ground Shift position is "R". 6.0 V

    Is inspection result normal? 

    YES: Go to 3.

    NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".

  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 front display unit harness connector and rear view camera harness connector.
      CONTINUITY SPECIFICATION

      Front display unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M75 8 B157 3 Existed
    4. Check continuity between front display unit harness connector and ground.
    CONTINUITY SPECIFICATION

    Front display unit Ground Continuity
    Connector Terminal
    M75 8 Not existed

    Is inspection result normal? 

    YES: Go to 4.

    NO: Repair harness or connector.

  4. CHECK CAMERA IMAGE SIGNAL
  1. Connect front 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.
TERMINALS REFERENCE

(+) (-) Condition Reference value
Front display unit
Connector Terminal
M75 8 Ground At rear view camera image is displayed.
G04890020Courtesy of NISSAN MOTOR CO., U.S.A.

Is inspection result normal? 

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

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

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