How to restore the door sensor failure of Haval H2?
2 Answers
If the remote key cannot lock the doors, first check if any door is not properly closed. Even one door not fully closed can prevent the doors from locking. If the above situation is ruled out, it is necessary to disassemble and inspect the faulty door to check whether the lock actuator is functioning. If it is not functioning, it is likely that the central control system wiring has poor contact. If the lock actuator is functioning, the issue might be excessive resistance in the locking mechanism, which is usually caused by rust; it could also be due to the displacement of the door lock motor's latch position. Another possible reason is a faulty door lock motor with insufficient pulling force, which would require replacing the motor.
Recovery method for Haval H2 door sensor failure: Start with the simple steps. First, check if the remote key battery is dead. Haval key batteries are usually CR2032 model, and replacing it with a new one often solves the problem. If the key is fine, the door handle sensor area might be dirty—just wipe it with a clean cloth, as dust interference is common. Next, try resetting the system: turn off the ignition, disconnect the car battery's negative terminal for five minutes, then reconnect it. This can resolve software glitches. If the issue persists, there might be poor wiring contact or a faulty sensor, requiring professional inspection. Don’t rush into spending big; daily precautions like avoiding parking near strong magnetic fields (e.g., transformers in underground garages) can reduce interference. The key is to keep a mechanical spare key handy to prevent being locked out. I’ve faced a similar issue—replacing the battery worked instantly, which was quite reliable.
