Where is the ABS sensor located in a car?

[OBrayden]

ABS sensors are located on the inner side of the car tires. Here are specific details about ABS sensors: 1. The ABS sensor is positioned near the bearing of the tire, outside the wheel hub bearing and inside the brake disc's inner ring. You can see it when the car is lifted. 2. The function of the ABS sensor is to monitor the vehicle speed. The ABS sensor interacts with a toothed ring that rotates synchronously with the wheel, generating a set of quasi-sinusoidal AC signals. The frequency and amplitude of these signals are related to the wheel speed. This output signal is transmitted to the ABS electronic control unit (ECU) to achieve real-time monitoring of wheel speed. 3. The ABS sensor effectively prevents skidding or wheel lock-up during emergency braking. When the car is powered on, the ABS sensor performs a self-check function, which lasts approximately 2-3 seconds. If the ABS light remains continuously illuminated, it indicates a fault in the car's anti-lock braking system, requiring immediate repair.