My '05 has been giving me a TBC Fault recently, but I haven't had a trailer on it. Does it cold/warm/coasting/accelerating. Constant bell and alert driving me crazy. I've read a couple old threads where people were having the same problem I am experiencing, but no solid answers on those. Thought I'd see if anyone had any new ideas for a fix besides finding the fuse and yanking that sucker!
Thanks!!!

 

I'd check the wiring harness for damage.
After that; I'm afraid its off to the dealer to check the computerator (next to the Johnson rod and below the muffler bearing).