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What Causes Frequent Jumping of the Central Locking System?

2 Answers

Lori

08/28/25 3:17am

The automatic jumping of the central locking system is caused by a grounding issue with the power supply or damage to the brake light power line. It is recommended to visit a repair shop to troubleshoot the issue. Detailed explanations are as follows: 1. When the central locking system receives the correct code signal, the control wave receiving circuit is triggered to extend the receiving time by 0.5 seconds before returning to standby mode. If the input code signal does not match, the receiving circuit will not be triggered. 2. If more than 10 incorrect code signals are input within 10 minutes, the system will assume an attempted theft and stop receiving any signals, including correct ones. In such cases, the owner must mechanically unlock the door using the key. 3. Signal reception can be restored by starting the ignition with the key or by turning the main switch of the remote door lock system off and then on again. If the door is not opened within 30 seconds after unlocking it with the remote, it will automatically lock again.

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VonCecilia

09/09/25 8:36am

I had the same issue with my previous car where the central locking system kept acting up randomly, and it took me quite a while to figure out the cause. The most troublesome problem was wiring issues, like aging or damaged wire harnesses near the door hinges, which caused short circuits every time I turned. Another time, the driver's side door lock button got wet after a car wash, leading to oxidized contacts and signal interference. A nearly dead remote key battery can also cause erratic behavior, with signals fluctuating between strong and weak. If you've installed an aftermarket anti-theft device, module program conflicts can be particularly disruptive, causing the lock mechanism to click repeatedly. Also, don’t overlook the central control box—my neighbor’s car had swollen capacitors inside, leading to unstable voltage that made the locks go haywire. If you notice these symptoms, address them immediately, especially during rainy days when the motor is prone to burning out. Last time, my repair cost me nearly a thousand bucks.

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