A customer wanted the ABS checked because of tire chirp noise during hard braking. Technician A says that the speed sensors may be defective. Technician B says that tire chirp is normal during an ABS stop on dry pavement. Which technician is correct?

Question

Quizplus · Accepted Answer

Tire chirp can be normal during an ABS stop on dry pavement as it indicates the ABS system is rapidly pulsing the brakes to prevent wheel lockup, which can cause a chirping sound. This does not necessarily indicate a defect with the speed sensors.

A Customer Wanted the ABS Checked Because of Tire Chirp