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Home >> Lexus >> 2022 >> LS 500h RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Advanced Park) - Diagnostic Codes (3 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Advanced Park) >> DTC C1202-00: Master Reservoir Level Malfunction [11/2021 - 10/2023] >> Monitor Description

Monitor Description

When the ignition switch is turned to ON and the fluid level warning switch (brake booster with master cylinder assembly) is on for a certain amount of time, the No. 2 skid control ECU (brake actuator assembly) judges that the brake fluid level in the reservoir is low and illuminates the MIL and stores this DTC.