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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (Electronically Controlled Brake System (HV) - Diagnostic Codes (08 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C137B-A3: Brake System Control Module "A" System Voltage System Voltage High [12/2019 - ] >> Monitor Description

Monitor Description

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When the voltage at terminal +BS of the No. 2 skid control ECU (brake actuator assembly) is more than a certain value, the No. 2 skid control ECU (brake actuator assembly) judges that the voltage is excessive, the MIL is illuminated and a DTC is stored.

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