I’m not sure if I shared this before but I’ve been having a devil of a time with the electronic break on the RV and it all has to do with the connection to the truck. I saw it with the Chevy, drove the damn thing back from Ohio with the truck beeping at me about, and even had the same issue with our first outing in the new truck to Sulpher Springs.

What’s happened is the trailer side connection is corroded and the pins have separated and there wasn’t an electrical signal between the truck and the break. I thought I had fixed it but I picked the wrong side to shim up and well, still had the issue.

So I don’t have to look for it again, here is the wiring diagram for a 7-pin