Two technicians are discussing ABS wheel speed sensors. Technician A says that some ABS systems use a sensor located in the rear-axle pinion gear area. Technician B says that all ABS systems use a wheel speed sensor at each wheel. Which technician is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because some ABS systems, particularly on older or certain types of vehicles, use a sensor located in the rear-axle pinion gear area to monitor wheel speed indirectly. Technician B is incorrect because not all ABS systems use a wheel speed sensor at each wheel; some systems use alternative methods for monitoring wheel speed.

Two Technicians Are Discussing ABS Wheel Speed Sensors