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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Except HV) - Diagnostic Codes (2 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C122D-14: Brake Master Cylinder Pressure Sensor Supply Voltage Circuit Short to Ground or Open [12/2019 - ] >> Description

DTC C122D-14: Brake Master Cylinder Pressure Sensor Supply Voltage Circuit Short to Ground or Open [12/2019 - ]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area
C122D-14 Brake Master Cylinder Pressure Sensor Supply Voltage Circuit Short to Ground or Open Master cylinder pressure sensor power supply voltage decrease occurs or history of voltage decrease exists, and defective master cylinder pressure sensor output continues for 1.2 seconds or more.
  • Master cylinder pressure sensor output defective
  • Skid control ECU (Brake actuator assembly)