Monitor Description

The No. 2 skid control ECU (brake actuator assembly) monitors the value of the accumulator pressure using the accumulator pressure sensor.

If any of the following conditions are met for a certain amount of time, the No. 2 skid control ECU (brake actuator assembly) judges that the accumulator pressure is low and illuminates the MIL and stores this DTC.

• The accumulator pressure does not increase when the pump motor is operated.
• The accumulator pressure is not a specific value or more after starting the No. 1 skid control ECU (brake booster with master cylinder assembly).
• The accumulator pressure is less than a specific value.