How to Test the Quality of a Wheel Speed Sensor?

[StEzra]

Testing the quality of a wheel speed sensor involves the following steps: 1. Check the gap between the sensor head and the gear ring: the front wheel should be 1.10~1.97mm, and the rear wheel should be 0.42~0.80mm. 2. Lift the wheel to make it off the ground. 3. Remove the ABS wheel speed sensor wiring harness connector for measurement. 4. Rotate the wheel at a speed of 1r/s; the front wheel should read 190~1140mV, and the rear wheel should be above 650mV. Introduction to wheel speed sensors: 1. A wheel speed sensor is used to measure the rotational speed of a car's wheels. 2. For modern vehicles, wheel speed information is essential, as systems like Vehicle Dynamic Control (VDC), Electronic Stability Program (ESP), and Anti-lock Braking System (ABS) all require wheel speed data. 3. The wheel speed sensor is one of the most critical sensors in modern vehicles.