Re-Wiring the brakes.
My 35' ~10,000 lb GVWR trailer brakes were wired with 14 gauge wire and very poor crimps. All the crimps on that I've seen so far are pretty bad... I'm going to redo it with a quality crimp tool ...
Forum Discussion
mrekim wrote:
I edited my previous post with an updated and hopefully more useful chart.
Here's a question. I saw a wiring diagram where the ground wire was run to the brakes, as required, and then attached to the frame near the brakes. This seems like a good idea and I think it should make the the ground return resistance much lower. I wonder if it makes sense to assume the ground return is zero for these calculations since it's probably much much lower than the hot side?
Bad idea.
If I remember correctly Dexter does not recommend grounding at the axle or frame near the axle.
As per my post above, doing so will result in ground loops which will cause noise and voltage to be present on the grounds. This noise will be interpreted by the controller as random trailer brake faults. Not to mention subtle differences of resistance will result in differences in the brake magnet strength.
A common grounding point IS best and the best place is at the FRONT of the trailer right where your pigtail connects to the trailer.
