Issue with trailer brakes, need guidance

collie hauler, that is my thought as well. My concern is that the emergency brake controller was putting a current into the circuit and that it could have burned up or impacted the TBC in the truck once I had connected it. I have a TBC tester on the way to verify, should be here tomorrow.

I will take the wheels off this week and see how much heat/damage was done.

Thanks everyone.