What is the detection method for wheel speed sensors?
1 Answers
The detection method for wheel speed sensors involves checking the gap, voltage, and wheel speed. Below are the specific steps for detecting wheel speed sensors: 1. Check the gap between the wheel speed sensor and the gear ring: The normal standard value for the front wheels is 1.10-1.97mm, while for the rear wheels, it is 0.42-0.80mm. 2. Check the output voltage: Lift the vehicle to raise the tires off the ground and release the parking brake. 3. Disassembly: Remove the ABS wheel speed sensor wiring harness connector, then proceed with direct measurement. 4. Measure the voltage: Rotate the wheel at a speed of 1r/s, and use a multimeter to measure the output voltage. The normal range for the front wheels is 190-1140mV, while for the rear wheels, it should be greater than 650mV. If the readings meet the standards, it indicates that the wheel speed sensor is functioning properly at this time.