ABS Sensor (Wheel Speed Sensor)
A sensor that measures wheel rotation speed for the anti-lock braking system.

ABS sensors send wheel speed data to the ABS module, helping prevent wheel lock-up during braking. They use magnetic or Hall-effect technology to detect rotation. Damaged sensors or dirty tone rings trigger ABS warning lights and disable traction control. Regular cleaning of sensor tips and checking resistance keeps the braking system reliable. Proper ABS function enhances safety and stability on slippery surfaces.
Applying This Knowledge in Practice
The diagnostic principles discussed above are commonly applied in real-world vehicle diagnostics. To put this knowledge into practice, explore professional automotive diagnostic tools designed to support system testing, fault analysis, and troubleshooting across modern vehicles.