Why can the central control of Hongguang S only open one door?

[VonAshley]

The reason why the central control of Hongguang S can only open one door may be that the central lock is not unlocked or the child lock is in the open state. Here are the reasons and solutions for the central control of Hongguang S only opening one door: Central lock not unlocked: The most common reason why the central control can only open one door is that the central lock is not unlocked, leading to this issue. Solution: Press the central control switch on the driver's control panel to unlock the central lock, which will allow other doors to be opened. Child lock in open state: The second reason is that the child lock on individual doors is in the open state. Solution: Open the door from the outside, observe the side of the door where there is a child lock, toggle the switch to close the child lock.

[Emmy]

I've encountered the issue with the Hongguang S's central control only opening one door several times, which is commonly caused by a blown fuse or a faulty door lock motor. During repairs, I've found that the most frequent issue is the related fuse in the fuse box burning out, possibly due to circuit overload or aging. Secondly, a malfunctioning door lock motor can also result in only one side being controllable, especially when the door is frequently opened and closed, leading to wear and tear. Short circuits or loose connections in the wiring should not be overlooked either, such as corrosion caused by dampness during rainy days. It's recommended to first check the fuse box under the driver's seat and replace the fuse corresponding to the door in question. If that doesn't work, then proceed to a professional shop for a comprehensive circuit inspection. Don't delay too long, as in an emergency, being unable to open the door could pose a safety risk.

[McMason]

My Hongguang S had the same issue before, where only one door could be opened via the central control while driving. Based on experience, the problem mostly lies in the small component of the door lock controller—when it fails, the signal gets interrupted. Another possibility is loose wiring connections, such as wires at the door hinge getting stretched and breaking over time. I’ve tried tightening the plugs myself, and sometimes it worked. Also, don’t forget to check the fuses; the fuse box is located under the front seats. My advice is not to tinker randomly. Instead, have a technician use tools to test the voltage and identify which door is causing the issue before repairing it. After all, if the central control malfunctions and the locking system fails when parked, losing belongings could become a real hassle.

[LaGenevieve]

The central control of the Hongguang S can only unlock one door, with the core issue being a malfunction in the central locking system. For example, relay failure may prevent control signals from reaching other doors, possibly due to burnt relay contacts. Another common cause is the failure of the door lock motor itself, where internal gears may be jammed and unable to rotate. Short circuits or broken wires can also interrupt the current, such as loose wiring caused by vehicle vibration. It is recommended to check the fuse box and door connectors, using a multimeter to test for continuity will clarify the issue. Having a professional fix it thoroughly in one go can save future troubles, as being accidentally locked inside the car can be dangerous.