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

[MalachiLee]

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.

[VanIsaac]

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.

[RosalieAnn]

From my perspective, the random jumping of the automatic locking system on the Baojun 730 stems from faults in the electrical system, such as burned relay contacts or blown fuses, causing the circuit to repeatedly connect and disconnect, leading to erratic locking behavior. Software bugs in the control module could also be at play, as prolonged use might cause the program to malfunction. I recommend first conducting a simple self-check of the fuse box to inspect the corresponding fuses for integrity. If replacing them doesn’t resolve the issue, then check for loose or shorted ground wires, as rust from high humidity can disrupt current flow. Don’t delay in addressing this erratic locking problem, as it can lead to wear on the mechanical parts of the lock. Regularly cleaning the sensor area during maintenance can help reduce similar risks.

[CassandraMarie]

I've encountered this issue before. The random activation of the auto-lock is directly related to driving. If the sensor is dirty or misaligned, the car may misinterpret the door's status, causing it to toggle back and forth. Loose wiring connections could also be the culprit, especially when vibrations on bumpy roads lead to unstable contact. It's best to visit a professional shop immediately to diagnose the problem with a scanner—don't delay, as a stuck lock could cause serious trouble. Regularly using compressed air to clean the sensor area of the lock and keeping it dry can help reduce such malfunctions.