What are the symptoms of a faulty tire ABS sensor?

[DelOwen]

The most direct symptom of a faulty tire ABS sensor is that the ABS warning light on the dashboard will illuminate, and the wheels may lock up during emergency braking, causing skidding and loss of control. Below is relevant information about ABS sensors: 1. Overview: The ABS sensor is used in automotive ABS (Anti-lock Braking System). Most ABS systems use inductive sensors to monitor vehicle speed. The ABS sensor interacts with a toothed ring that rotates synchronously with the wheel, outputting a set of quasi-sinusoidal AC signals whose frequency and amplitude are related to wheel speed. This output signal is transmitted to the ABS electronic control unit (ECU) for real-time monitoring of wheel speed. 2. Types: Ring-type wheel speed sensor: The ring-type wheel speed sensor mainly consists of a permanent magnet, induction coil, and toothed ring. The permanent magnet is composed of several pairs of magnetic poles. As the toothed ring rotates, the magnetic flux inside the induction coil alternates, generating an induced electromotive force. This signal is input to the ABS ECU through the cable at the end of the induction coil. When the speed of the toothed ring changes, the frequency of the induced electromotive force also changes.