Posted by ScottyHOMEy on August 08, 2009 at 04:42:23 from (70.105.254.119):
In Reply to: Trailer Brake Issues posted by Jared M on August 07, 2009 at 23:20:32:
Not sure what you have for a truck, Jared, but on some the wiring to a factory trailer plug does not match the customary color coding. First thing I'd do is get that back the way it was when it worked on the friend's trailer. YOu might have to use a test light to trace anything you lost track of
Then start in on your trailer. You don't say whether this is a 7- blade or a 6- or 7-pin connector. A lot of goosenecks tend to come with the 6-pin, and a lot of weird things get done converting them over to 7-blade.
A couple of things to watch for. If it is a six-pin, those came two ways, one with the center pin for the brakes and the other with the center pin for your 12v hot, so once you're sure your truck is right, you may have to swap those two pins on the trailer end to get your brakes to show up on the controller and have them work right. The other is to just go slow. Myself, I have to be careful and triple check what I'm doing as it doesn't take long for my feeble minds to get twisted up working with the mirror images that the two sides of the plug make.
And Gary makes a very good point about your ground. You can't have enough grounds on the truck or the trailer, and you really need to have them connected directly through the plug. Grounding through the hitch is not reliable.
Gary's link is good But I'll toss another one in that also includes some troubleshooting ideas.
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