Diagnosis Procedure

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Diagnosis Procedure
  1. CHECK BRAKING FORCE 

    Check brake force using a brake tester.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Check brake system.

  2. CHECK FRONT AND REAR AXLE 

    Check that there is no excessive looseness in front and rear axle.

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected parts.

  3. CHECK WHEEL SENSOR 

    Check wheel sensor.

    • Check installation and damage of wheel sensor.
    • Check connection of wheel sensor harness connector.
    • Check terminal of wheel sensor harness connector.

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair installation or replace wheel sensor.

  4. CHECK SENSOR ROTOR 

    Check that there is no looseness, damage or foreign material on sensor rotor.

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair installation or replace sensor rotor.

  5. CHECK WARNING LAMP TURNS OFF 

    Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn OFF approx. 1 second after key switch is turned ON and stay in OFF status during driving.

    CAUTION: Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake fluid is less than the specified level (brake fluid level switch is ON).

    Is the inspection result normal?

    YES

    Normal

    NO

    Perform self-diagnosis for "ABS" with CONSULT.

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.