The main cause of parking brake malfunction is to short circuit or open circuit of the wires or circuits between the switch, controller, and actuator. When the brake system fails, the brake light on the dashboard will activate so the driver can detect the problem to repair it.
A parking brake is designed to supplement the main hydraulic braking system and keep the vehicle stationary when it is shut down and parked. Unlike hydraulic braking systems, which use fluid to transfer braking force from the pedal to the wheel brakes, electric brake systems use an electric motor to generate the braking force instead.
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