Re: Electric brake wiring question.
You can use the trailer frame as a ground return. It will work most of the time. I personally use both the frame with a short ground wire from the magnet to the frame and a long wire one guage heavier than the hot wire, ran all the way back to the electrical plug.
Two of the long time posters will add their opinions shortly taking opposite sides of the grounding debate. Pay your money, take your chioce and remember you can go the other way if time shows you that is what is best for you in your application.
The frame ground path depends on clean contact of several parts that flex in real life. I have found on my rigs that eventually one or more of those contacts develops corrosion at a most inopportune time and the local constabulary reminds me that the electricity is not flowing as it should.
Seperate ground wires has slowed down the contact with the boys in blue, but not entirely eliminated it. Why is it always while it is raining?
