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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 126 (Electric Parking Brake System (HV) - Diagnostic Codes & Symptom Tests) >> ELECTRIC PARKING BRAKE SYSTEM (for HV Model) >> Electric Parking Brake System AUTO Function Circuit [12/2019 - 11/2023] >> Description

Electric Parking Brake System AUTO Function Circuit [12/2019 - 11/2023]: Description

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The No. 2 skid control ECU (brake actuator assembly) receives shift position signals from the hybrid vehicle control ECU via CAN communication to control the electric parking brake system AUTO function (IG-OFF linked function).

The electric parking brake system AUTO function (IG-OFF linked function) is automatically disabled when the ignition switch is ON, the brake pedal is depressed and the shift lever is moved out of P. Then, if the shift lever is moved to P, the AUTO function (IG-OFF linked function) automatically operates to apply the electric parking brake.