Who is correct regarding the types of Tire Pressure Monitoring Systems?

Technician B is correct regarding the types of Tire Pressure Monitoring Systems (TPMS). TPMS are generally categorized into two types: direct and indirect systems.

Direct TPMS uses pressure sensors located in each tire to monitor the air pressure in real-time, providing accurate readings that can alert the driver immediately if tire pressure falls below recommended levels. On the other hand, indirect TPMS does not use pressure sensors in the tires but instead relies on the vehicle’s ABS (Anti-lock Braking System) wheel speed sensors to detect variations in wheel rotation speed, which can indicate under-inflated tires.

Understanding these two systems is crucial for automotive technicians, as they affect maintenance practices, diagnostic procedures, and recommendations for tire care. Being able to distinguish between these systems enables technicians to better address tire issues and provide effective customer service.