2015 GMC Sierra 3500 - Check Trailer Wiring
We just purchased a 2015 GMC Sierra DRW with the Duramax and integrated brake controller. I hooked up the trailer (a 2013 Lifestyle 36FW with the standard electric brakes) for the first time and I dro...
Forum Discussion
I had a similar issue with my previous truck/trailer combo with the aftermarket Prodigy brake controller. It drove me nuts until I pulled the trailer brake drums to check the linings and there was the problem on 2 wheels! There was too much slack in the wires going to the magnets and over time the insulation was rubbed off of the wires by the rotating brake drum causing a direct short. I rerouted and taped up the wires and the problem was solved.
This would only apply if you have drum brakes on your trailer, however. It would also explain the intermittent problem, which is exactly what I had. I have discs on our new to us trailer and no longer have to worry about that issue.
Hope this helps.
This would only apply if you have drum brakes on your trailer, however. It would also explain the intermittent problem, which is exactly what I had. I have discs on our new to us trailer and no longer have to worry about that issue.
Hope this helps.
