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Home >> Infiniti >> 2024 >> Q50 Luxe, AWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System >> Basic Inspection >> Brake Control System >> Calibration Of DECEL G Sensor >> Work Procedure
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Work Procedure

CAUTION:

Always perform the decel G sensor calibration before driving when the following operation is performed.

NOTE: Yaw rate/side/decel G sensor calibration is performed when performing the decel G sensor calibration.

x: Required -: Not required

Procedure Decel G sensor calibration
Removing/ installing ABS actuator and electric unit (control unit) -
Replacing ABS actuator and electric unit (control unit) x
Removing/installing steering components -
Replacing steering components -
Removing/installing front suspension components -
Replacing front suspension components -
Removing/installing tire -
Replacing tire -
Tire rotation -
Adjusting front wheel alignment. -
CAUTION:

Always use CONSULT for the decel G sensor calibration. (It cannot be adjusted other than with CONSULT.)

NOTE: Yaw rate/side/decel G sensor calibration is performed when performing the decel G sensor calibration.
  1. CHECK THE VEHICLE STATUS 
    1. Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.
    2. Stop the engine.
    3. Turn the ignition switch OFF.

    Is the vehicle stopped in the straight-ahead position on level surface?

    YES>>

    GO TO 2.

    NO>>

    Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.

  2. PERFORM DECEL G SENSOR CALIBRATION 
    CAUTION:
    • Never allow passenger or load on the vehicle.
    • Never apply vibration to the vehicle body when opening or closing door during calibration.

    SYMBOL With CONSULT

    1. Turn the ignition switch ON.
      CAUTION:

      Never start engine.

    2. Select "ABS", "WORK SUPPORT", "DECEL G SENSOR CALIBRATION" in this order.
    3. Select "START".
    4. After approximately 10 seconds, select "END".
    5. Turn ignition switch OFF and then turn it ON again.
      CAUTION:

      Be sure to perform the operation above.

    >>

    GO TO 3.

  3. CHECK DATA MONITOR 

    SYMBOL With CONSULT

    1. Drive the vehicle. Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.
    2. Select "ABS", "DATA MONITOR", "ECU INPUT SIGNALS" and "DECEL G SENSOR" in this order. Check that the signal is within the specified value. Refer to Values On The Diagnosis Tool .

    Is the inspection result normal?

    YES>>

    GO TO 4.

    NO>>

    GO TO 1.

  4. ERASE SELF-DIAGNOSIS MEMORY 

    SYMBOL With CONSULT Erase self-diagnosis result of "ABS". Are the memories erased?

    YES>>

    INSPECTION END

    NO>>

    Check the items indicated by the self-diagnosis.