What is the reason why the central control of JAC Heyue can lock but cannot open?

[DelNaomi]

The reason why the central control of JAC Heyue can lock but cannot open: If all the doors cannot be opened, then it can be determined that there is a problem with the central control. If only a single door cannot be opened, it is usually a failure of the lock actuator, and it can be replaced individually. Before replacement, check if the pull wire has come off, as it might return to normal after installation. Introduction to central control lock: The full name of the central control lock is central control door lock, which is a car accessory. Using this lock, you can remotely open and lock the door without inserting the key into the keyhole. It consists of a door lock switch, actuator, and controller. Main functions of the central control lock: When the driver locks the door next to them, the other doors are also locked simultaneously. The driver can open all doors at the same time through the door lock switch, or open a single door individually. When the driving speed reaches a certain level, all doors can lock automatically to prevent passengers from accidentally operating the door handle and causing the door to open. In addition to the door next to the driver, other doors are equipped with separate spring lock switches, which can independently control a single door.

[CaliAnn]

I just bought a JAC Heyue and ran into the issue where the central locking system can lock but not unlock, which is quite frustrating. I suspect it might be due to a dead battery in the remote key fob or a faulty signal receiver that fails to send the unlock command. Among owners of this JAC model, it’s common to hear complaints about minor glitches in the control module—perhaps a software glitch in the computer board or a loose wiring harness connector. Once, after manually unlocking the door with the key, I found the actuator motor inside the door was stuck, and it only worked again after applying some lubricant. Safety is crucial; being trapped outside the car can be dangerous, so I recommend immediately visiting a 4S shop to check the circuits and fuses. For daily use, avoid exposing the remote to moisture or water, and during regular maintenance, ask the technician to test the locking system to prevent such issues.

[DiMaya]

I've had my JAC Heyue for five or six years and encountered the issue where the central locking system can lock but fails to unlock a few times. This is usually caused by poor contact in the unlock button or a burnt-out relay switch, leading to signal interruption. This JAC model has a common problem where the gears in the door lock actuator wear out easily, especially in the driver's side door. First, try using the manual key to see if it can open. The fuse might have blown—locate position F15 in the car's fuse box and replace it with a new one. I've replaced the actuator module before, and it was a small expense to fix. Remember, address the issue promptly to avoid getting stuck one day. Also, avoid spraying water directly into the door lock area when washing the car.

[McKhloe]

As a JAC Heyue owner, having issues with the central locking system is really frustrating. Most of the time, it's due to the remote signal not being received—try replacing the battery if it's dead. Or, the car battery might be too low, affecting the system's power supply and preventing unlocking. Sometimes, the switch contacts inside the door oxidize and need cleaning or replacement. On forums, user feedback suggests intermittent faults in the control module, and restarting the vehicle after disconnecting the power might occasionally solve the issue. If that doesn’t work, quickly visit a repair shop to diagnose it with a scanner to avoid bigger problems. Regularly check the locks for rust during maintenance.

[ChristianDella]

I've done quite a few car DIY projects, so I understand the experience of the JAC Heyue's central locking not opening. Common causes are short circuits in the wiring or carbon buildup on the relay contacts, which interrupt signal transmission. Check the wiring harness connector under the driver's seat—if it's loose, reconnect it firmly. Use a multimeter to measure the unlocking voltage; a low value indicates an issue with the control unit. Sometimes, the JAC's locking system has programming logic errors, and reconnecting after a power reset might restore functionality. For those with strong DIY skills, trying a new actuator module is an option, but safety first—don't force the door open. I recommend attempting to reset the key coding before proceeding with repairs.

[OJackson]

Our family owns a JAC Heyue, and last year we encountered the frustration of the central locking system being stuck and unable to open. It's highly likely that the remote control chip or sensor has aged and can't recognize the signal; or the connecting rod of the door lock actuator is rusted and stuck—try lubricating it with engine oil. The lock design of JAC models requires attention to waterproofing to avoid moisture affecting internal components. When opening the door, listen for any mechanical sounds; if there's no sound, the motor is probably dead. Seek professional repair as soon as possible, and avoid manually prying the door open to prevent structural damage. Remember to regularly check the battery and remote control status to extend their lifespan.