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Home >> Infiniti >> 2023 >> QX50 Autograph >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit >> Basic Inspection >> Steering Torque Calibration >> Work Procedure
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Work Procedure

Work Procedure (Preparation) 

  1. PERFORM SELF-DIAGNOSIS 

    Turn ON the ignition.SYMBOL CONSULT Perform self-diagnosis of "ICC/ADAS". Check if any DTC is detected.

    Is any DTC other than "C1A2F-54" detected?

    YES>>

    Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to DTC Description .

    NO>>

    GO TO 2.

  2. PREPARATION BEFORE STEERING TORQUE CALIBRATION 
    1. Perform pre-inspection for diagnosis. Refer to Inspection Procedure .
    2. Place the car on a level surface.
    3. Adjust the tire pressure to the specified pressure value.
    4. Maintain no-load in vehicle.
    5. Check if the following conditions are satisfied.
      • Shift position: P Range
      • Steering wheel: Center (within ±15 degrees)
      • ProPILOT Assist: OFF
      • Vehicle speed: 0 km/h
      • ADAS control unit voltage: More than 10.5 V
    6. Release the parking brake.

    YES>>

    Refer to Work Procedure (Steering Torque Calibration).

Work Procedure (Steering Torque Calibration) 

NOTE: SYMBOL
  • The steering wheel is operated automatically when "Start" is touched.
  • Do not touch the steering wheel.
  1. STEERING TORQUE CALIBRATION 

    SYMBOL CONSULT

    NOTE: SYMBOL Operate CONSULT outside the vehicle, and close all the doors.
    1. Select "Work Support", then "Steering Torque Calibration".
    2. Select "START" to begin the Steering Torque Calibration.
      NOTE: SYMBOL Never touch steering wheel or shake the vehicle when the Steering Torque Calibration is conducted.
    3. Confirm the displayed item.
      • "Completed": Select "Completion".
      • "Abnormally completed": Perform the following services.

    Displayed item possible cause service procedure:

    Possible Cause Action
    Steering wheel torque value is out range.
    • Check install condition of steering system (from torque sensor to steering wheel).
    • After repairing or replacing error-detected parts, perform calibration again.
    Out of execution condition.
    • Ensure the following items are within the specified range:
      • ADAS control unit power supply: more than 10.5 V
      • Shift position: P Range
      • Steering wheel: Center (within ±15 degrees)
      • Vehicle speed: 0 km/h
      • Touched the steering wheel during calibration: retry without touching the steering wheel.
      • Some parts are not normal: Perform "All DTC Reading" with CONSULT.
    • Touch "Retry" after satisfying the execution conditions.
    Calibration for torque value is abnormally completed. Touch "Retry".

    Confirm that "Completed" is displayed and then select "End" to close the adjustment procedure.

    YES>>

    Work End.