Ford 7 Pin Trailer Wiring Diagram. And here is the complementary mirror image with the trailer side connection Fords colors do not match industry standers. Look at the wiring diagram for your truck and determine the designation given to the ground location for the taillights.
Even with the wiring diagram, I'd double check with a voltmeter. Need to replace a corroded or damaged Trailer Hitch Plug on your Ford Windstar model? Look at the wiring diagram for your truck and determine the designation given to the ground location for the taillights.
Trailer Wiring Diagrams showing you the typical wiring for most single axle trailer and tandem axle trailers.
Not sure which wires attach to what on your trailer connectors?
And here is the complementary mirror image with the trailer side connection Fords colors do not match industry standers. I found that the white (ground) wire from the four way flat was cut short inside the seven way shell, and only the fat white external ground wire was connected. I hope this helps some folks, because it's pretty tough finding this online.
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