How to resolve Landwind X5 anti-theft authentication failure?
3 Answers
Place the remote key against the one-touch start button for more than 30 seconds, then press the unlock button on the remote key. You can also press the lock button and trunk button multiple times. If the engine anti-theft system authentication failure alarm still cannot be resolved, pull open the engine compartment release handle under the dashboard and look into the gap between the three chrome strips. Locate the positive and negative battery terminals, use a wrench to loosen the nut securing the negative terminal, remove it from the terminal for 1 minute, then reattach the clamp.
When I encountered the Landwind X5's anti-theft authentication failure, I tried the spare key but it didn't work either, possibly due to a dead key battery or module malfunction. I drove directly to the nearby 4S shop. They first used the computer diagnostic system to read the fault codes and found that the anti-theft module had poor contact. A simple restart fixed the issue. I suggest you first check the key battery and try replacing it with a new one. If the headlights flash or the car doesn't respond, never force-start the engine, as it could damage the engine control unit. Regularly replace the key battery, and don't panic if the anti-theft system fails. Park in a safe place and call a tow truck to a professional repair shop. Haphazard repairs may lead to other problems.
When repairing my car, I encountered a Landwind X5 anti-theft system failure. First, I replaced the button battery in the remote key, then checked if the relevant fuses in the fuse box were blown, and disconnected the car battery for a few minutes to reset the system. Sometimes minor issues can cause authentication errors. I have an OBD diagnostic tool to read errors, but avoid disassembling parts randomly. It's best to keep a spare key for emergencies. If several attempts fail, stop—the anti-theft module might be damaged and need replacement. Towing to a shop is cheaper and safer than incorrect DIY operations, which can risk the vehicle's overall stability.
