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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (INFINITI INTOUCH) (Diagnostic Trouble Codes (DTCS) & Symptom Tests (Exc Hybrid) >> DTC/Circuit Diagnosis >> DTC U12B8: Rear Camera Conn >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK REAR VIEW CAMERA POWER SUPPLY (1)

    1. Turn ignition switch OFF.
    2. Disconnect rear view camera harness connector.
    3. Turn ignition switch ON.
    4. Shift the selector lever to R position.
    5. Check the voltage between rear view camera harness connectors.
      Rear view camera Voltage
      (Approx.)
      Connector Terminals
      (+) (-)
      Terminal
      T49 1 2 6.0 V

    Is the inspection result normal?

    YES 

    Replace rear view camera. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2  .

  2. CHECK REAR VIEW CAMERA POWER SUPPLY (2)

    Check the voltage between rear view camera harness connector and ground.

    Terminals Voltage
    (Approx.)
    (+) (-)
    Rear view camera
    Connector Terminal
    T49 1 Ground 6.0 V

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    GO TO STEP 3  .

  3. CHECK REAR VIEW CAMERA POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect display control unit harness connector.
    3. Check the continuity between display control unit harness connector and rear view camera harness connector.
      Display control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M101 74 T49 1 Existed

    Is the inspection result normal?

    YES 

    Replace display control unit. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace malfunctioning parts.

  4. CHECK REAR VIEW CAMERA GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect display control unit harness connector.
    3. Check the continuity between display control unit harness connector and rear view camera harness connector.
      Display control unit Rear view camera Continuity
      Connector Terminal Connector Terminal
      M101 54 T49 54 Existed

    Is the inspection result normal?

    YES 

    Check display control unit and rear view camera ground.

    NO 

    Repair or replace malfunctioning parts.