I had taken my 1999 Dodge 1/2 ton to UHaul
a few months ago for a hitch and a 4-pin light
connector. (The Boler
doesn't have brakes
.) When we got the Casita
a couple weeks ago I bought the 7-pin adapter, plugged the 4-pin into the other one, connected the ground wire and taped up the other wires temporarily. Of course we didn't have brakes
or a charge to our battery
, but the lights
were fine. When I had a chance I went back to UHaul
to get a brake controller installed. The first visit resulted in no charging line for the battery
(he said he couldn't find where to connect it), the driver side trailer brake locked up and nothing happened on the other side. The controller showed E1.
After the second all-day visit to UHaul
, I was assured that they had found the problem and my brakes
would work. They don't. At least now both sides lock up! My Reliance controller instructions say that the lowest setting is 5% but I can't get any lower than 10%. The controller still reads E1. From what I've read I believe the problem is an improper ground and I've backtracked to the point where I think it's either the controller wires mismatched to the harness wires that plug in under the dash, or the fact that there doesn't seem to be a ground wire to the battery
, which the controller instructions say to do. It probably goes without saying that I don't understand the automotive electrical
system very well. I either need simple layman's suggestions or advice to take it to someone else!
My plan at this point is to find someone with a trailer with electric brakes so that I can hook my truck up to it to see if those brakes lock up. Conversely, I'll have someone with a brake controller hook up to my Casita
and see if it functions properly. That will isolate the problem to my truck or the trailer.
I have read about the wire color differences on my vehicle. What I don't know is whether the harness wires put in under the dash use the Dodge colors or the controller colors. They are wired to the controller wires white-white, etc. How much damage would I do if I assumed that the harness wires are "Dodge colors" and I rewired into the controller accordingly? Just to see if it works..?
Second question: I may not have an opportunity to take the truck back in before I take the Casita
on a short trip next weekend. I see no reason I can't disconnect the blue brake wire back by the hitch for the trip, knowing I won't have brakes but should have everything else....right?