My on board computer at start up is telling me that I have a tire pressure sensor fault. After searching old posts I found that it means one of the sensors in my wheels has gone bad. Is the dealer capable of using a tool to find the wheel not communicating? Or do they practice trial and error wheel by wheel? Any input would be great because I am getting more and more upset every time that light stares me down.

 

Are you sure that the sensor is not working? as far as I know, the TPMS light will come on if the tire does not have the right pressure (low or high), just check if you don't have high pressure...
Anyways, the dealer can know which sensor is failing... I know that for sure

 

The dealer can plug in a laptop to the ECU and tell you which corner is bad.