Hi, I just had the same problem with a Ram 500. The probe is most likely bad. They should never get warm on their own. A way to ckeck if it is calibrated is to put it in a bucket of ice and it should read 0 degrees and then into a pot of boiling water and it should read 100 degrees. I will bet a dollar to a donut that the probe has a internal short and that is why it is getting warm. This is what was happing with the Ram 500 we had such a time with a few weeks ago. A lot of people gave me things to try, but when I touched the HOT and I mean HOT probe I knew it was bad;since I had just turned on the ECU and had Not tried to start the engine that morning. We changed it out and everything works great now. Hope this helps, Ron Stahl