How Do I Wire Utility Trailer that has 2 Yellow and 2 Green Wires

Question

Question:

I have a utility trailer Im wiring up and my trailer has 2 yellow wires 2 green wires and one white and my harness has white,brown,yellow, and green how do I wire this up?

asked by: Josh M

0

Expert Reply:

My suggestion is to test the wires for function with the trailer connected to the tow vehicle. You will need a circuit tester, like part # PTW2993 and a 12v power source, like a car battery. You can then probe the connector with the tester to determine the specific functions of the wires.

I have included a link to a wiring FAQ that explains the functions, wire colors, and size wire used on various connectors.

expert reply by: Chris O

0

Fred G.

4/10/2020

I have a trailer with a wiring harness that has 2 green wires2 yellow wires1 brown1 whiteShould both green wires be tied together and both yellow wires be tied together?

Chris R.

4/13/2020

There's a good chance those same-colored wires will be tied together (I suppose you just have two wires for each side's turn/brake light circuit) but there's no way for me to know this for sure. Your safest route is really to test those wires by either applying 12V power to each of them individually to see what they activate or test them with a circuit tester while hooked up to the tow vehicle. You could also just try to physically trace each of them on the trailer to see which light assembly they lead to.

Answer 1

There should be five wires on your trailer side connector, a white wire which is for a ground, the yellow/brown and green/brown are for the running lights, a green wire for the right turn/stop light, and a yellow wire for the left turn/stop light…

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Answer 2

The brown (running light) wires all run to each other as they carry the same circuit. The reason there is two browns on the trailer side is because there are running lights that are on both sides of the trailer. Aside from that all the rest of the…

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Answer 3

You have it right so far, the 4-way connector is just as you have stated. Remember that Yellow has a L in it so that is the left side brake/turn signal and green has a R in it so that is the right side brake/turn signal. The colors for wiring a 7-way…

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 6

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 7

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 8

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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Answer 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 12

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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How Do I Wire Utility Trailer that has 2 Yellow and 2 Green Wires

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