What is the reason for the electronic parking brake system malfunction?
3 Answers
There are two main reasons for electronic parking brake system malfunctions. Electronic parking brake failure: If the electronic parking system malfunctions, it is likely due to an issue with the electronic parking brake itself or worn brake pads. Electronic system problem: It could also be caused by an electronic system issue or a problem with the battery power supply. In such cases, it is necessary to visit a repair shop to read the fault codes with a decoder and perform repairs based on the fault codes. Function of the electronic parking system: The electronic parking system works by using a slope sensor to provide precise parking force through the controller. During startup, the parking control unit calculates information from sensors such as the clutch distance sensor, clutch engagement speed sensor, and throttle pedal sensor. When the driving force exceeds the running resistance, the parking brake is automatically released, allowing the car to start smoothly.
Once when I was driving out for fun, the car suddenly displayed an electronic parking brake system malfunction warning right after startup, which flustered me and nearly caused the car to roll back on a slope. I immediately pulled over to check and found the issue was due to low battery voltage – turns out I hadn't used the car for an extended period and failed to maintain the battery properly. The electronic parking brake operates via a small electric motor, which becomes prone to malfunctions if voltage fluctuates or sensors give false readings. Common causes also include poor wire connections, blown fuses, or outdated control system software. Like other electronic components such as the AC system, it can also be affected by moisture or aging. Such situations require prompt attention – I turned on the hazard lights while pulling over and later had it fixed at a repair shop. During routine maintenance, remember to have technicians inspect system wiring connections and battery health to prevent minor issues from escalating into major problems.
I've been researching electronic parking brake failures for quite some time. Simply put, the main issues lie with sensors, motors, or circuitry. Sensor deviations in detecting vehicle posture, motor jams or rust leading to poor execution, and circuit shorts or blown fuses are particularly common. Electronic systems are like smartphone software—they occasionally need resetting or updating. When a fault occurs, a warning light illuminates on the dashboard, sometimes accompanied by a buzzing sound. Don't overlook this, as it's crucial for parking safety. I recommend starting by checking the battery voltage, as low voltage can strain the entire system; then inspect the fuse box for any signs of blown fuses. During daily driving, avoid frequent emergency braking to protect the motor. Regular system scans at authorized service centers can prevent potential issues, especially since such faults are more likely to occur in rainy or cold weather.
