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Home >> Infiniti >> 2019 >> QX50 Essential, FWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System >> Basic Inspection >> Calibration Of DECEL G Sensor >> Work Procedure >> Decel G sensor calibration
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Decel G sensor calibration

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 CONSULT

    1. Turn the ignition switch ON.
      CAUTION: Never start engine.
    2. Select "ABS", "Work support", "DECEL G SEN CALIBRATION" in this order.
    3. Select "Start".
    4. After approx. 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 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-SEN" in this order. Check that the signal is within the specified value.

      DECEL G-SEN

      : Approx. +/-0.08 G

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 1.

  4. ERASE SELF-DIAGNOSIS MEMORY 

    SYMBOL CONSULT

    Erase self-diagnosis result of "ABS".

    Are the memories erased?

    YES

    GO TO 5.

    NO

    Check the items indicated by the self-diagnosis.

  5. PERFORM DECEL G SENSOR CALIBRATION (TRANSMISSION) 

    Perform decel G calibration. Refer to Description .

    YES

    Inspection End.

    NO