Why is the Anti-Skid Light On?
2 Answers
The reasons for the anti-skid light being on are: 1. Accidentally pressing the ESP off button; 2. Loose or faulty sensor connectors; 3. Short circuit in the wiring or related fuse blown; 4. Software issues causing poor signal transmission; 5. ABS pump failure. The anti-skid system uses ABS and ASR electronic control units to calculate and analyze the wheel slip rate and vehicle speed based on signals from the wheel speed sensors. The electronic control unit regulates the throttle opening and brake pressure to control the wheel slip rate, preventing the vehicle from skidding during driving.
After driving for so many years, I've encountered the anti-skid light suddenly coming on a few times, mostly due to sensor issues. That little light turning on is to inform the owner that the anti-skid system may not be functioning properly. The most common reason is that the wheel speed sensor is dirty or covered in mud, affecting its ability to read wheel rotation data. Once, it came on after I drove on a muddy road, so I stopped, wiped around the wheel sensor with a cloth, and the light turned off after restarting. It could also be triggered by the system misjudging due to slippery roads or sharp turns. ABS system malfunctions or unstable battery voltage can also cause the light to come on. If it really lights up, don't panic—slow down, drive gently, find a safe place to stop and check, or go to a repair shop as soon as possible to diagnose the fault code with a computer. Otherwise, driving can be unstable, especially in rainy conditions, increasing the risk of losing control.
