Itowed my trailers up to the mountain last weeked, when we were half way up I deciede to turn the smarty on and see if the clutch would hold. I hooked it up and started the download then everything went crazy on me, I tried five times to set back to stock but kept getting error codes. after a while I deciede to unhook the trailer wires to see what happen and bingo that was it. So don't have a trailer wire harness hooked up when changing programs.I don' know about other programers.

 

Good to know. thanks.

 

thanks for the info..plan on buying one in the future..hopefully near future.....and thats the only thing i would use it for is hauling..

thanks!

 

I have a feeling this would be an 06-07 thing. 05's and previous dont have a TIPM fuse panel and this is probably where you were having your problems.

 

steelhauler, I would say youwerelucky!!!.... When installing any programmer, any and all additional eclectrical accessories like CB radios, xm/cirus, "trailer wiring", laptops,12v power adapters like cell phone chargers and the like, or opening a truck door,even a powered up cell phone in your pocket may affect the programmer.In the likelyhood of a power surge from any device, it may cause a programmer failure.OH!! the horror if one was to experience a power surge while trying to return settings back to stock, because its goping into the dealer for work!!