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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEDRIVER ASSISTANCE SYSTEMSYMPTOM DIAGNOSISFREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS SHORTDIAGNOSIS PROCEDURE
2019 Infiniti Q70 3.7 Luxe, AWD

Diagnosis Procedure

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Diagnosis Procedure
  1. VISUAL CHECK (1) 

    Check front bumper grille near the ICC sensor for contamination and foreign materials.

    Do foreign materials adhere?

    YES

    GO TO 2.

    NO

    GO TO 3.

  2. WIPE OUT DIRT AND FOREIGN OBJECTS 

    Wipe out the contamination and/or foreign materials from the front bumper grille near the ICC sensor.

    GO TO 7.

  3. VISUAL CHECK (2) 

    Check ICC sensor body window for cracks and/or scratches.

    Are there cracks?

    YES

    GO TO 5.

    NO

    GO TO 4.

  4. PERFORM RADAR ALIGNMENT 
    1. Perform radar alignment. Refer to Application Notice .
    2. Perform action test. Refer to Description .
    3. Check that the vehicle ahead detection performance improves.

    Does it improve?

    YES

    INSPECTION END

    NO

    GO TO 5.

  5. REPLACE ICC SENSOR 
    1. Replace the ICC sensor. Refer to Removal and Installation .
    2. Perform radar alignment. Refer to Application Notice .
    3. Perform action test. Refer to Description .
    4. Check that the vehicle ahead detection performance improves.

    Does it improve?

    YES

    INSPECTION END

    NO

    GO TO 6.

  6. REPLACE ADAS CONTROL UNIT 

    Replace the ADAS control unit. Refer to Removal and Installation .

    GO TO 7.

  7. CHECK DCA SYSTEM 
    1. Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to Description  for action test.)
    2. Check that the DCA system is normal.

    INSPECTION END

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.