The ABAKUS 120-03-105 wheel speed sensor is a critical component for modern vehicle safety systems. It precisely monitors the rotation of each wheel, providing essential data to the Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) modules. When a wheel begins to lock up during braking or spin excessively during acceleration, this sensor detects the difference in rotational speed compared to other wheels. This information allows the vehicle's computer to intervene by modulating brake pressure or engine torque, helping the driver maintain control. Proper functioning of the wheel speed sensor is vital for the reliable operation of ABS, traction control, and other advanced driver-assistance systems (ADAS). A faulty sensor can lead to warning lights on the dashboard and compromised safety performance.