Can Trailer with Brown Yellow and Brown Green Wires Run to Standard 4-Way

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Question:

My utility trailer only has a yellow-brown and a green-brown wire along with a white ground wire from each side. So the yellow-brown comes from the left side along with a white wire and the green-brown comes from the right side along with a white wire. Am I able to use this configuration with a 4 way flat? If so, how would I do it? Thanks

asked by: Matthew D

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Expert Reply:

Yes you would be able to use your current trailer wiring configuration with a standard 4-way that only has 4 wires like the # HM38138 that you referenced. Basically the yellow brown and the green brown wire would wire directly to the single brown wire of the 4-way and the other colors would match and you'd be set.

What you have now is a wish bone setup that just has a separate wire for the running light circuit for each side of the trailer. We have 4-ways that are setup for this with the part # 002402 as well.

expert reply by: Jameson C

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Answer 1

A link to the trailer wiring you are asking about is provided, just scroll down the page to select the connector you have on your vehicle and trailer. The wires on the 5 pole flat are as follows White/ground, Brown/taillights, Yellow/left turn and…

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Answer 2

Normally, the green wire on the right side carries right turn signal and brake light functions and the brown wire carries running light functions. On the left side, the yellow wire carries left turn and brake lights and the brown wire again carries…

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Answer 3

Yes, you could wire your trailer to have backup lights by using a 5-way flat like the Hopkins Endurance Trailer Connector, #HM47910, and then use an adapter like the 7 Pole to 5 Pole Flat Wired Adapter, #A57WB, to be able to plug in to your…

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Answer 4

If it was a 4-pin connector with 5 wires then it is called a wishbone harness and would have 2 wires attached to the running light pin so you have one wire for each side of the trailer. Typically, on a 4-Way, the white wire is ground, brown is…

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Answer 5

We have the parts you are looking for, but none of our 4-way connector harnesses use 14 gauge wiring as 4-way connectors typically use 16 gauge wire. With that said you can make your own using the Deka Jacketed 4-Wire - 14 Gauge #DW04923-1 which is…

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Answer 6

The Lexus 300 and Nissan Pathfinder use different wiring harnesses, but if they both have 4-Way flat trailer connectors, they will be pinned the same (function the same). The 5-Way trailer side connector will have an extra function at the pin…

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Answer 7

If you add additional wire you're still going to be getting under the trailer to run it. I would go ahead and look under the trailer to check for a short in the wiring. Many times this can be found near the lights where the wire connects. It…

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Answer 8

Your typical 4-way flat to round adapter like the #ADP001 is the opposite of what you need on both ends. Although nobody makes an adapter like this, you can easily make your own. For the 4-way flat trailer end connection you can use the Hopkins…

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Answer 9

If you have the Hopkins #47549 that you referred to in your question you should be able to open up the adapter and repin the two wires to swap the function. Since there are two standards of wiring a 6-way in the market they made this feature…

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Answer 10

For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector #W787264. The part #HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.

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Answer 11

Most trailer wiring that runs to trailer lights is 16 gauge. I would rather people use 14 or 12 unless the lights are LED which draw considerably less. But for most people 16 gauge works just fine for basic trailer lighting. If you are planning on…

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Answer 12

Typically 4-way wiring consists of 18 and 16 gauge wires. For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector #W787264. The part #HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.

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Can Trailer with Brown Yellow and Brown Green Wires Run to Standard 4-Way

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