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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Electronically Controlled Brake System (HV) - Diagnostic Codes (05 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C05A1-28: Brake Pressure Sensor "E" Signal Bias Level Out of Range / Zero Adjustment Failure [12/2019 - 11/2023] >> Monitor Description

Monitor Description

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When the brake pedal is not operated and the servo pressure sensor output value exceeds a specific value, or the value is less than a specific value for a certain amount of time, the No. 2 skid control ECU (brake actuator assembly) judges that the zero point of the servo pressure sensor is abnormal and illuminates the MIL and stores this DTC.

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