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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 C141C-49: Brake Booster Motor "A" Control Internal Electronic Failure [12/2019 - 10/2021] >> Monitor Description

Monitor Description

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The motor relay which drives the pump motor and the motor fail-safe relay are built into the No. 1 skid control ECU (brake booster with master cylinder assembly). When the No. 2 skid control ECU (brake actuator assembly) judges that there is a malfunction such as overcurrent in the motor relay or motor fail-safe relay, the MIL is illuminated and a DTC is stored.

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