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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-12: Brake Booster Motor "A" Control Circuit Short to Battery; DTC C141C-14: Brake Booster Motor "A" Control Circuit Short to Ground or Open; DTC C141C-1C: Brake Booster Motor "A" Control Circuit Voltage Out of Range [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 voltage of the pump motor.

When the pump motor is instructed to be on and the voltage of the pump motor is within the range of an open circuit malfunction (voltage value is practically equal to that when off), or when the pump motor is instructed to be off and the voltage of the pump motor is within the range of a short circuit malfunction (voltage value is practically equal to that when on), an open circuit or short circuit is judged respectively and the MIL is illuminated and stores a DTC.

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