The problem: The tires often were found to be underinflated, and experienced tread separation. It was a PR disaster for the tire manufacturer, and it ultimately led to legislation requiring tire-pressure monitoring systems TPMS on all new vehicles.
TPMS sensors found in the majority of vehicles today are physical-pressure transducers that are an integral part of the valve stem, or, in some cases, strapped inside the wheel. Radio antennas fixed inside the units send the unique IDs and pressures that are associated with the wheel position on the car to the engine control unit ECU. Advertisement Servicing vehicles with TPMS is a challenge at best without the correct installation information, parts and tools. Most of the confusion about TPMS comes down to the vehicle relearning steps and sensor programming.
The sensors also will need to be relearned to the car. In spite of all the training programs and technical articles on the subject, there is still a lot of misunderstanding about TPMS, and the confusion between vehicle relearn and sensor programming tops the list. Unfortunately, some shops overlook the necessary relearn step mistakenly believing the sensor programming did the trick. This misconception can lead to service comebacks and customer complaints.
Auto relearns are the most common type of TPMS relearn procedure used in the industry. They are more frequently used on newer vehicles, as this make it simpler for customers to replace the sensors.
Please note that there are some vehicles which may use a combination of two of the above TPMS relearn types. Contact Us. Direct systems are more accurate and reliable to indicate which tire is underinflated. Indirect systems include Asian and some European vehicles. When a service has been performed to the direct TPMS system, such as air pressure adjustment, tire rotation or replacement of sensors, most vehicles will require a TPMS system relearn to be performed.
Although relearn procedures differ from manufacturer to manufacturer, the three types of relearn procedures are auto relearn, stationary and OBD. Furthermore, some vehicles may use a combination of two or more relearn types.
0コメント