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Home >> Lexus >> 2021 >> ES 300h Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Hybrid) - Diagnostic Codes (1 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1202: Master Reservoir Level Malfunction [06/2018 - ] >> Monitor Description

Monitor Description

When the power switch is on (IG) and the fluid level warning switch (brake booster with master cylinder assembly) is on for a certain amount of time, the skid control ECU (brake booster with master cylinder assembly) judges that the brake fluid level in the reservoir is low and illuminates the MIL and stores this DTC.

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