We hooked up a Prodigy Brake Controller to our truck the other day and went to go pick up our travel trailer from storage so we could use it this long weekend. When we plugged the trailer in to the connecter on the truck, the controller doesn't register that there is a trailer connected. The controller works (has power) just won't recognize a trailer, therefore -- no brakes :-( Well, thinking we had a wiring problem, I went and bought one of those harnesses that has one end to plug in to the truck and the other end to the controller -- no splicing. Still same thing. I even bought another controller to see if this was the problem. Still nothing. We checked everything on the trailer which seems to check out fine. So I called the Tekonsha people and they told me to go get a 12 volt test light and put the clamps on the ground terminal in the 7-pin connecter and test the Brake terminal in the connecter(blue wire) and I should get a code indicating a short on the controller if things are working properly which would then point to the trailer. Well, nothing at all happened. No changed codes which indicates something with the truck. When my husband was initially hooking this up (with the splice method), he accidently had the GM harness plugged in as he was attempting to connect some wires and it 'sparked'. Could this have done something like blown some fuse somewhere that isn't obvious? What else can we check? Maybe factory tow package wiring defect? I called Chevy to see if there was a simple way for them to check whether the was a fault in the truck end of things, so we would know whether to focus on trailer or not, but they said that "it could turn into a long troubleshooting thing" and that they didn't have time to do it today. Please, any ideas!! We really wanted to go on vacation tomorrow.
P.S. Turn signals, stop lights etc work on trailer.
