Mac Northrop
New Member
- Joined
- May 6, 2021
- Messages
- 2
I found a OEM trailer brake controller for my 08 AV. I purchased a harness that plugs into the controller from GM. The controller has eight pins on the back where the harness plugs into. None of them are labeled. All of the wires on the harness are white and have no numbers or markings. Does anybody know which four I need for the basic controller to work?
