my tail light wires are cut and rigged with different color wires, and they dont work. How do I wire them correctly?

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Asked by smatthew1 May 14, 2007 at 10:23 PM about the 1986 Ford F-150

Question type: Maintenance & Repair

I just purchased a 1986 ford f-150 XL short bed and the taillights do not work at all. some wires have been cut and replaced with different color wires. (the wires are located under the bumper, they jump from one light to the other) I need to know how the original wires were ran before they were cut and replaced with different color wires.

LouB answered 17 years ago

Hi smatthew! I couldn't find an available wiring digaram on the web so I will refer you to either your local library where you'll find the Chilton's for your F150 (hoepfully they have the individual version, the bound version may not have what you need) or your local Chevy dealer where the service manager may be able to get you some reference material as to the wiring diagram. You can also try Ford F150 Net (http://www.fordf150.net/) where there are plenty of resources to steer you in the right direction. Good luck!

Mark helpful

74,390

OJ answered 12 years ago

Determine which side receives power from the front. It will jump to the other side side. Since the wires were cut I suspect there is a problem with the ground. No ground, no lights. Use a multimeter and probe to first determine power is being supplied to the side fed by the appropriate switch/pedal from the front. Check the fuse box making sure whoever cut then spliced in the wires did not blow a fuse. The owners manual should show which fuse operates the tail lights.

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