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Home >> Infiniti >> 2017 >> QX70 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (Steering Control System (Symptom Diagnosis & Removal And Installation) (Hybrid)) >> Symptom Diagnosis >> The Vehicle Pulls To One Side >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK THE ILLUMINATION OF THE POWER STEERING WARNING LAMP

    1. Set the vehicle to READY state or start the engine.
      CAUTION:

      Never drive the vehicle.

    2. Check that the power steering warning lamp turns OFF.

    Does the power steering warning lamp turn OFF?

    YES 

    GO TO STEP 2  .

    NO 

    Perform self - diagnosis for "EPS/DAST 3", "DAST 1" and "DAST 2".

  2. AUTO ADJUSTING MODE (1)

    1. Turn the steering wheel to left/right 90 degree or more from center position 2 times.
    2. Drive straight ahead at around 30 km/h (19 MPH) or more for more than 5 seconds.
      CAUTION:
      • Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      NOTE:

      Drive at between 30 km/h (19 MPH) and 40 km/h (25 MPH), as much as possible. It is easy to succeed with the work.

    3. Stop the vehicle.

    GO TO STEP 3  .

  3. SYMPTOM CONFIRMATION

    Recheck the symptom and check that symptom is not reproduced on the same conditions.

    Is the symptom corrected?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 4  .

  4. AUTO ADJUSTING MODE (2)

    1. Drive straight ahead at 60 km/h (37 MPH) or more for more than 15 seconds.
      CAUTION:
      • Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      NOTE:

      When the vehicle pulls to one side slightly, the driving at between 30 km/h (19 MPH) and 40 km/h (25 MPH) may not dissolve the symptom.

    2. Stop the vehicle.
    3. Repeat the driving and stopping 5 times.

    GO TO STEP 5  .

  5. SYMPTOM CONFIRMATION

    Recheck the symptom and check that symptom is not reproduced on the same conditions.

    Is the symptom corrected?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 6  .

  6. CHECK SUSPENSION AND STEERING PARTS INSTALLATION CONDITION

    Check suspension and steering parts installation condition.

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

    Install suspension and steering parts properly. Then perform the toe-in adjustment.

  7. TOE-IN ADJUSTMENT

    Adjust toe-in. Refer to INSPECTION AND ADJUSTMENT .

    GO TO STEP 8  .

  8. FINAL CHECK

    Recheck the symptom and check that symptom is not reproduced on the same conditions.

    Is the symptom corrected?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 7  .

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