trailer wiring

Old 04-24-06, 10:27 PM
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Question trailer wiring

need help on wiring the lights on a utility trailer that dont have any wiring, have a 4 pin connector for my 2000 Ford F-150 that has factory wiring for trailer wirers and using a adapter for the 4 pin plug in, just lights no breaks,
Old 04-25-06, 06:07 AM
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Not sure if this helps, but maybe it will help you get started. I don't know what color is used for what. (This is only how it SHOULD be, how it has always been for me.)

One wire is the ground, for me it has always been white. If there is one prong on the plug that looks different than all the rest then I would assume that one is the ground. After finding which one for sure is the ground simply ground it to the frame of the trailer.

For the other three, one is the right blinker, one is the left blinker, and the other is a common wire for both lights, it's the brake lights. If it doesn't say on the package the plug for the trailer comes in what wire does what, then the easiest way to tell is to use a volt meter.

Old 04-26-06, 05:30 AM
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