Christ I hate trailer wiring. In theory it's SO simple, but in practice it's such a PITA. I need to rewire my stock trailer, but before I did so I made sure the plug at my truck was working right. Sure enough it's not. It's a 2012 Ram 2500, with factory brake controller. Running lights, turn signals, and brake lights are all good to go, but the trailer brake post just gives a steady trickle. And when you turn the gain down to 0 no difference, and when you turn it up to 10 no difference. Doesn't matter whether you have the brake engaged or not. I took it to the dealer and they said it needed a "flash update" for the computer and that might fix it. I left thinking it had worked since they didn't phoucing say it hadn't. I checked again today before I dove in on the trailer, and it's doing the same damned thing.
I've read that the factory brake controller is a weak point on these trucks. WTF?
