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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 >> Side Radar RH >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSES 

    Check that the following fuses are 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 POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect the side radar RH connector.
    3. Check voltage between side radar RH harness connector and ground.
    Terminals Condition Voltage(Approx.)
    (+) (-)
    Side radar RH Ground Ignition switch
    Connector Terminal
    M253 5 OFF 0 V
    ON Battery voltage

    Is the inspection result normal?

    >>

    GO TO 3.

    >>

    Repair the side radar RH power supply circuit.

  3. CHECK GROUND CIRCUIT 

    Check continuity between side radar RH harness connectors and ground.

    Side radar RH Ground Continuity
    Connector Terminal
    M253 8 Yes

    Is the inspection result normal?

    >>

    Inspection End.

    >>

    Repair the side radar RH ground circuit.