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Home >> Infiniti >> 2016 >> QX50 RWD >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (Diagnostic Trouble Codes (DTCS) B272C-U1310 And Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC U111A: Rear Camera Image Signal Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CONTINUITY REAR CAMERA POWER SUPPLY AND GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector and rear camera connector.
    3. Check continuity between around view monitor control unit harness connector and rear camera harness connector.
      Around view monitor control unit Rear camera Continuity
      Connector Terminals Connector Terminals
      B91 50 D111 8 Existed
      52 7
    4. Check continuity between around view monitor control unit harness connector and ground.
      Around view monitor control unit Ground Continuity
      Connector Terminal
      B91 50 Not existed

    Is inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair harness or connector.

  2. CHECK VOLTAGE REAR CAMERA POWER SUPPLY

    1. Connect around view monitor control unit connector and rear camera connector.
    2. Turn ignition switch ON.
    3. Check voltage between around view monitor control unit harness connector and ground.
      (+) (-) Condition Voltage
      (Approx.)
      Around view monitor control unit
      Connector Terminal Connector Terminal
      B91 50 B91 52 "CAMERA" switch is ON or shift position is "R". 6.0 V

    Is inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

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

  3. CHECK CONTINUITY REAR CAMERA IMAGE SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector and rear camera connector.
    3. Check continuity between around view monitor control unit harness connector and rear camera harness connector.
      Around view monitor control unit Rear camera Continuity
      Connector Terminals Connector Terminals
      B91 53 D111 5 Existed
    4. Check continuity between around view monitor control unit harness connector and ground.
      Around view monitor control unit Ground Continuity
      Connector Terminals
      B91 53 Not existed

    Is inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair harness or connector.

  4. CHECK REAR CAMERA IMAGE SIGNAL

    1. Connect around view monitor control unit connector and rear camera connector.
    2. Turn ignition switch ON.
    3. Check signal between around view monitor control unit harness connector and ground.
      (+) (-) Condition Reference value
      Around view monitor control unit
      Connector Terminal Connector Terminal
      B91 53 B91 54 "CAMERA" switch is ON or shift position is "R".
      GNSJSNIA0834GB-834Courtesy of NISSAN NORTH AMERICA, INC.

    Is inspection result normal?

    YES 

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

    NO 

    Replace rear camera. Refer to REMOVAL AND INSTALLATION .

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