Question about 2005 Ford Taurus

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Wiring a 2005 Taurus sedan for a trailer hitch.

Does anyone know the wiring color code for splicing in a trailer hitch wiring harness for a 4-flat connector?

In other words, on the car, which wire is the brake lights, which is the left and right turn signals, and with is the regular tail light? Which color?


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  • Anonymous Mar 15, 2014

    2005 Chevy Silverado 2500 HD. Left brake light and turn work on truck. Left turn works on trailer, but not the left brake light. Troubleshooting has not revealed any solutions. Any suggestions?

  • Anonymous Mar 17, 2014

    Hello, I want to add rear lights to my 2013 toyota corolla. the directions say, I need to find the color of the brake light positive wire, the color of the brake light negative wire, and the color of the tail light positive wire. These are the wires I have to tap into.

  • Anonymous Mar 23, 2014

    do not have 12 volt power from left turn signal



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If you can't get a wiring diagram... locate the wiring harness for the lights.... use a multimeter to test the wires....even one of those ice pick type of testers with the light on it will do
have someone step on the brake.... whichever wire has voltage is the brakes. next have them turn on the right turn signal... check for voltage on the other wires... it will of course be off on . do the other side the same way. all you have left is the wire for your running lights.... turn on the parking lights for that. also if i remember right there is a connector already there for the towing package. even if you didn't order that with the vehicle it's likely there. check in the side panel where you store the jack.


Posted on Sep 20, 2008


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