After searching google for any methods communicating with TPMS using the Arduino I figured I would end with a post. I understand the basics of how the automotive Tire Pressure Monitoring System works. Each tire has a sensor that transmits the pressure/temp to a receiving unit. The problem I have with this system is that most of the standard TMPS only display a low tire pressure light instead of actually telling you which one is low. Which is why I would like to know if anyone has successfully communicated with these sensors and if so what h/w was used as well as some snippets that showed how the h/w was interfaced with the Arduino.