General Information

Electric Parking Brake
C1101 Battery Voltage High - General Information

Component Location





General Description

The EPB is the acronym for Electric Parking Brake system. This system is the parking brake device which is used instead of the conventional hand-break system. When a driver presses the EPB button, the button signal is delivered to the EPB ECU and then the EPB actuator which consists of a motor and a gears is activated. At this time, while the motor in the EPB actuator rotates, the motor pulls the EPB cable connected to the rear wheels. Among components of the system, the EPB ECU checks the battery voltage and alternator output voltage to determine, as a safety issue, whether this system can operate normally or not. The normal battery voltage range is essential for controlling this system as intended.

DTC Description

The EPB ECU monitors the voltage of battery and if it stays more than a certain value, this DTC is set.

DTC Detecting Condition





Diagnostic Circuit Diagram