It’s really hard for me to explain it lol I called a good friend of mine who is one of the best mechanics I know and I had to try and explain it to him 3 times lol turn signals on the truck itself work just fine. It’s just affecting the trailer plug.
So I have a 2005 2500 and for some odd reason when I turn my left turn signal on it will put power through both turn signal wires for the trailer plug. I checked power at the panel on the side and sure enough it’s the same thing. Anybody ever run into this same problem?