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BRAKE FLUID PRESSURE SENSOR CALIBRATION


caution Prior to calibration, check that no brake fluid pressure sensor-related diagnosis codes are set.
caution After the following procedure is complete, carry out calibration to let the ASC-ECU learn the neutral position of the brake fluid pressure sensor.

  • During diagnosis according to diagnostic trouble code No. C123A
  • ASC-ECU replacement
caution During the calibration, the brake pedal should be released (the stoplight switch should be off).
1.Park the vehicle on a level surface.
2.
caution Before connecting or disconnecting the scan tool, turn the ignition switch to the "LOCK" (OFF) position.
Set the scan tool with the ignition at "LOCK" (OFF).
3.Turn the ignition switch to the ON position.
4.Select the relevant system from the menu.
5.Select "ABS/ASC/ASTC" from the system list under "System select", and press "OK" button.
6.Select "Special function" under "ABS/ASC/ASTC".
7.Select "Sensor calibration" under "Special function".
8.Select "M/C pressure sensor calibration" from the selected item, and press "OK" button.
9.The screen displays "M/C pressure sensor calibration: The selected command will be executed. Are you sure? Caution: Please check execution conditions." Then press "OK" button.
10."Executed: The command was executed." will be shown. Then press "OK" button.
11.Learning neutral point complete
12.Turn the ignition switch to "LOCK" (OFF) position and then disconnect the scan tool.