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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Front Camera Unit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSES 

    Check that the following fuse is not blown.

    Signal name Fuse No.
    Ignition power supply 27 (10A)

    Is the fuse blown?

    >>

    Replace the blown fuse after repairing the affected circuit.

    >>

    GO TO 2.

  2. CHECK FRONT CAMERA UNIT POWER SUPPLY CIRCUIT 

    Check voltage between front camera unit harness connector and ground.

    Terminal Condition Voltage(Approx.)
    (+) (-)
    Front camera unit Ground Ignition switch
    Connector Terminal
    M260 3 OFF 0 V
    ON Battery voltage

    Is the inspection result normal?

    >>

    GO TO 3.

    >>

    Repair the front camera unit power supply circuit.

  3. CHECK FRONT CAMERA UNIT GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect the front camera unit connector.
    3. Check for continuity between front camera unit harness connector and ground.
      Front camera unit Ground Continuity
      Connector Terminal
      M260 1 Yes

    Is the inspection result normal?

    >>

    Inspection End.

    >>

    Repair the front camera unit ground circuit.

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