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Home >> Lexus >> 2023 >> LS 500h >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Advanced Park) - Diagnostic Codes (2 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Advanced Park) >> DTC C0594-00: Brake Booster Motor "A" Performance [11/2021 - 10/2023] >> Monitor Description

Monitor Description

The No. 2 skid control ECU (brake actuator assembly) monitors the voltage of the pump motor.

When the voltage of the pump motor is practically equal to that when on for a long period of time, the No. 2 skid control ECU (brake actuator assembly) judges that the pump motor is operating for an abnormally long time and illuminates the MIL and stores a DTC.