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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Intelligent Around View Monitor System) >> Intelligent Around View Monitor System >> DTC/Circuit Diagnosis >> U111A Rear Camera Image Signal Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY OF REAR VIEW CAMERA POWER SUPPLY AND GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector M170 and rear view camera connector B76.
    3. Check continuity between around view monitor control unit connector M170 and rear view camera connector B76.

      Around view monitor control unit

      Rear view camera

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M170

      17

      B76

      1

      Yes

      18

      2

    4. Check continuity between around view monitor control unit connector M170 and ground.

      Around view monitor control unit

      Ground

      Continuity

      Connector

      Terminal

      M170

      18

      No

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Repair harness or connector.

  2. CHECK VOLTAGE OF REAR VIEW CAMERA POWER SUPPLY 
    1. Connect around view monitor control unit connector M170 and rear view camera connector B76.
    2. Turn ignition switch ON.
    3. Check voltage between around view monitor control unit connector M170 and ground.

      (+)

      (-)

      Condition

      Voltage

      (Approx.)

      Around view monitor control unit

      Connector

      Terminal

      M170

      18

      Ground

      "CAMERA" switch is ON or shift position is "R".

      6.0 V

    Is the inspection result normal?

    YES

    GO TO 3 .

    NO

    Replace around view monitor control unit. Refer to Removal and Installation .

  3. CHECK CONTINUITY OF REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect around view monitor control unit connector M170 and rear view camera connector B76.
    3. Check continuity between around view monitor control unit connector M170 and rear view camera connector B76.

      Around view monitor control unit

      Rear view camera

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M170

      19

      B76

      5

      Yes

      20

      4

    4. Check continuity between around view monitor control unit harness connector M170 and ground.

      Around view monitor control unit

      Ground

      Continuity

      Connector

      Terminal

      M170

      20

      No

    Is the inspection result normal?

    YES

    GO TO 4 .

    NO

    Repair harness or connector.

  4. CHECK REAR VIEW CAMERA IMAGE SIGNAL 
    1. Connect around view monitor control unit connector M170 and rear view camera connector B76.
    2. Turn ignition switch ON.
    3. Check signal between around view monitor control unit connector M170.

      Around view monitor control unit

      Condition

      Reference value

      Connector

      (+)

      (-)

      Terminal

      M170

      20

      19

      "CAMERA" switch is ON or shift position is "R".

      GNSJSNIA0834GB-834Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES

    Replace around view monitor control unit. Refer to Removal and Installation .

    NO

    Replace rear view camera. Refer to Removal and Installation .