DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 135 (Electronically Controlled Brake System (HV) - Diagnostic Codes (09 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C13DA-09: Brake Pressure Too High (Brake Booster) Component Failure [12/2019 - 11/2023] >> Monitor Description

Monitor Description

WARNING: This page is about a different variant/trim than selected.

The No. 2 skid control ECU (brake actuator assembly) monitors the relationship between the specified decrease in servo pressure and the target brake fluid pressure.

When the brake pedal is released or while braking is being performed and the relationship between the servo pressure and the target brake fluid pressure is outside of the normal range, the No. 2 skid control ECU (brake actuator assembly) judges that the decreasing pressure is abnormal and illuminates the MIL and stores a DTC.

Diesel-Data.com