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Does anyone know the wiring colors uses for a horse trailer...

<< Back to: Electrical Wiring FAQ (Part 1 of 2)

Question by Flashpoint
Submitted on 11/16/2003
Related FAQ: Electrical Wiring FAQ (Part 1 of 2)
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Does anyone know the wiring colors uses for a horse trailer plug?

Answer by NQHR
Submitted on 12/22/2003
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On my older (unknown make) horse trailer I discovered the black was ground, green was right turn, yellow was left, and red was taillights. It will depend on your trailer the way my husband had me test it out was to take a D cell battery (the big square ones you use in lanterns)and hook the ground to the - side and the color I was testing to the + side when it lights up you know what color line goes to where. Luckily with the connector I was attaching it was labeled where each wire should be attached to plug into my van right. Hope this helps!


Answer by sparky
Submitted on 2/3/2004
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a battery charger will do the same thing but the lights will be brighter and easier to identify


Answer by LucasM
Submitted on 3/2/2004
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The colors seem to be matched to the standard plug wiring that U-haul uses as well as all the plugs sold in the stores.  Take a trip to an auto parts place and check the back of the box or buy one.


Answer by murphey
Submitted on 4/29/2004
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no i dont


Answer by rubher duckie
Submitted on 8/13/2006
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i just found on an older kingston trailer that i converted from 6 pin to 7 slot, that the wiring is as follows...
black  -  ground
red    -  running lights
brown  -  electric brakes
yellow -  right turn/stop
green  -  left turn/stop
blue   -  reverse lights
...the most bass akwards wiring i'mever encountered on a horse trailer...i wish i knew the year, but i don't....hopefully that can be of some help


Answer by mrkilowatt
Submitted on 10/11/2006
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Hmm now that could be a tricky one . Depending on if you have a trailer with electric brakes. Ok.. here is the skinny on the color codes.. Black or White is for Ground...Black being Mechanical or Earth Ground. White is also a ground, but known as an electrical ground in DC Circuits.. Red is for Brake Lights.. Brown is for the Running or Marker Lights.. Yellow is Left... Green is Right.. and finally if you
have ELECTRIC BRAKES... Blue.. This will make up your 6 or 7 wire configuration.. Note:  If you have either a White or a Black wire but not both.. Use that one for your GROUND and make sure it is connected  well to the Chassis.. Hope this helps.. OH yeah,, be sure to check exactly where in the plug the wire are .. not all vehicles and or trailers put the wires in the same place.. in other words.. #1 terminal might be Black on the Female side but it might be # 5 on the Male .. MAKE SURE THEY MATCH or you might just short out something..


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