Monitor Description

The skid control ECU monitors the relationship between the specified increase or decrease in wheel cylinder pressure and the target brake fluid pressure.

When the brake pedal is depressed and the relationship between the wheel cylinder pressure and the target brake fluid pressure is outside of the normal range, the skid control ECU judges that the increasing pressure is abnormal and illuminates the MIL and stores a DTC.

Furthermore, when the brake pedal is released or while braking is being performed and the relationship between the wheel cylinder pressure and the target brake fluid pressure is outside of the normal range, the skid control ECU judges that the decreasing pressure is abnormal and illuminates the MIL and stores a DTC.