What does the wheel speed sensor do?

A wheel speed sensor measures the rotational speed of each wheel in a vehicle. This information is crucial for systems like anti-lock braking (ABS) and traction control, as it helps prevent wheel lockup and maintains vehicle stability during acceleration and braking. The sensor provides real-time data to the vehicle's electronic control unit (ECU), enabling it to adjust braking force and traction as needed for optimal performance and safety.