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How To Replace a 4-Way Taylor Trailer Connector With 7-Way


I have a new 7 pin connector and a new Demco surge brake with reverse l.ockout all from you for my 2014 F 150 and boat trailer. the trailer has a Taylor 4 pin connector with 6 wires. White, Brown/Yellow, green/brown, yellow, green, red. I know what to do with the lockout, but where so the 6 wires go to the trailer ? White is ground thanks


Expert Reply:

The wires on your 4-way trailer connector are as follows:

White - Ground
Yellow/Brown - Left Side Trailer Running Light
Green/Brown - Right Side Trailer Running Light
Yellow - Left Side Trailer Stop/Turn Light
Green - Left Side Trailer Stop.Turn Light
Red - Misc.

In order to rewire the above to a standard 7-way trailer connector you just need to match the wires based on function but the yellow/brown and green/brown wires can just be joined as one and then attached to a running light wire on the trailer connector. The red wire can then be used for either the battery charge or reverse light circuit. I have attached our trailer wiring help article which you will want to look over as well. I recommend the Trailer Wiring 7-Way Upgrade Kit part # e99011 for the above.

expert reply by:
Conner L

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