Hard to search to see if anyone else had this problem, but it's a P0600 code and the trip meter reads "ER HC". The CEL trips and the cruise control indicator flashes. The car temp also reads H. I pulled into a parking lot and reset the code with my scanner and everything was fine after that. I was driving normally the whole time when it tripped. I have an 06 stage 2 that's been running great for 4 months. Just wondering if anyone knows why this happened just incase I run into it again.