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Old 04-05-2010, 11:52 AM   #3
fixit-p
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Join Date: Dec 2008
Location: Yay Area CA
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Re: How do I hook up my trailer brake setup on my 94 c3500?

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Originally Posted by team39763 View Post
Ok, I found the wiring scheme for the controller. It shows a blue wire as the trailer connector. I think I found that wire, and it seems to be connected to my 6 pin connector. Would that mean that I should connect the trailer brake wire(big one on the trailer) to the white wire(unused) on the 4 pin connector? Then plug that into my 6pin-to-4pin adapter?
No the white wire is usually used as a ground wire, the 4 pin does not support trailer brakes so there is no connection from the blue wire in the 6 pin to the 4 pin in the adapter. IMO you would be better off using a matching connector on the trailer also if there is a battery on the trailer you'll want it to charge while driving.
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2005 Silverado 2500HD Crew Cab


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