What is the reason for the engine anti-theft light not flashing?
2 Answers
It may be that a car door is not properly closed. Below is some information about the anti-theft light: 1. Operation method: Engine electronic anti-theft system; Each key has an anti-theft transponder embedded in it. When the key is inserted into the ignition switch lock cylinder and turned to the "ON" position, the electronic anti-theft ECU communicates with the key via radio frequency; If the key is confirmed to be valid, the anti-theft ECU will perform a password verification with the engine ECU; If the password verification is correct, the engine will be allowed to start. 2. Precautions: (1) When inserting the key into the ignition switch lock cylinder and turning it to the "ON" position, do not place items with strong magnetic fields near the ignition switch lock cylinder. (2) Do not expose the key to extremely high or low temperature environments.
Last time my car's anti-theft light stopped flashing, and it really freaked me out. Actually, this issue is quite common. First, check if the car key's battery is dead - if the chip key doesn't have enough power, it can't send signals. Then inspect whether all doors are properly closed, including the trunk lid, as any door not fully shut will cause the anti-theft system to malfunction. I once encountered this due to a fuse issue - had to check the maintenance diagram to locate the anti-theft system fuse in that small box under the steering wheel. Loose wiring connections can also cause this problem, especially those bundles near the steering wheel that tend to age. The worst case is when the anti-theft control module fails, requiring professional diagnostic equipment to confirm. Now I only feel at ease when I see that little red light flashing - without a working anti-theft system, I just can't feel secure.
