What is the reason why the ABS light turns on and then off by itself?
2 Answers
The ABS light turns on and then off by itself due to issues with the vehicle's ABS sensor. Here are the general reasons for the ABS light turning on: 1. Problems such as broken wires or loose connectors in the ABS wiring. 2. Poor quality electronic control device configuration. 3. The fuse has blown for some reason. Below is extended information about the reasons for the ABS yellow light: 1. Low battery voltage. 2. ABS circuit failure. 3. Lack of brake fluid. 4. Faulty vehicle speed sensor. 5. The fuse has blown. 6. Malfunction in the vehicle's anti-lock braking system.
Last time when I was driving, the ABS light suddenly came on and then went off by itself. After checking, it turned out that the wheel speed sensor was covered in mud. These sensors are located near the wheel hubs and can easily get dirty when driving through muddy roads in rainy weather. When the signal is interrupted, the light comes on, and after a few bumps, the mud falls off and the light goes out. Another possibility is a loose wiring connector, especially in older cars where the metal pins may have oxidized, leading to poor contact. The connection might be restored as the car shakes. Even though the light went off, I still recommend reading the fault codes because repeated issues could also be caused by surface cracks on the sensor or a loose ABS pump connector. These hidden dangers can be dangerous if the ABS fails during emergency braking. Once, after I cleaned the sensors on all four wheels, the problem never occurred again. Those with good DIY skills can handle this themselves.
