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Home >> Infiniti >> 2018 >> QX30 Essential, FWD >> 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 LH >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSES 

    Check if any of the following fuses are blown:

    Signal name

    Fuse No.

    Battery power supply

    90

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Replace the blown fuse after repairing the affected circuit if a fuse is blown.

  2. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect the side radar LH connector.
    3. Check voltage between side radar LH harness connector and ground.

    Terminals

    Condition

    Voltage

    (Approx.)

    (+)

    (-)

    Side radar LH

    Ground

    Ignition switch

    Connector

    Terminal

    M251

    4

    OFF

    11.0 - 15.5 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair the side radar LH power supply circuit.

  3. CHECK GROUND CIRCUIT 

    Check continuity between side radar LH harness connectors and ground.

    Side radar LH

    Ground

    Continuity

    Connector

    Terminal

    M251

    1

    Existed

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Repair the side radar LH ground circuit.