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What causes the random jumping of the automatic locking system in the Baojun 730?

2 Answers

MalachiLee

09/04/25 7:57am

Automatic locking system randomly jumping may be due to a damaged lock mechanism, causing the motor to continuously operate. It could also be a malfunction in the sensor that detects whether the car door is properly closed, leading to confusion in the control computer's information and causing the motor to keep working. Solution: For car owners with some DIY skills, you can remove the door panel and check if any parts of the locking mechanism have fallen off or are damaged. If you find any dislodged parts, you can reinstall them yourself. If no specific fault is observed, it is best to leave it to professionals for handling. Precautions for sensor malfunction: When there is a sensor or computer malfunction, it is difficult for non-professionals to determine the exact cause of the issue. It is advisable to take the car to a 4S shop or repair shop for inspection and repair. This type of fault is not a simple circuit connectivity issue but involves the car's control computer. While driving, the sensor sends an electrical signal to the door locking control computer, which then makes a judgment and issues commands to drive the motor for locking the door.

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VanIsaac

09/17/25 2:01am

After driving the Baojun 730 for so many years, the random auto-locking issue is really annoying. The most common cause is sensor problems, such as the door position sensor getting damp or dusty, which mistakenly thinks the door is opening and closing, triggering erratic behavior. Another issue is aging wiring with poor connections, especially in humid weather when corroded copper wires cause unstable current, making the locking mechanism act up. In such cases, I’d recommend visiting a 4S shop to check the body control module—they can pull up error codes and address the root cause. Don’t try fixing it yourself to avoid turning a minor issue into a major one. Parking in less humid areas can help prevent such problems. I’ve heard similar issues in other cars, mostly due to poorly maintained electrical systems.

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