Trailer Wiring Has 5-Wires White, Yellow, Green, Yellow/Brown, and Green/Brown

Question

Question:

4 coming from the vehicle,connecting to 5 on the trailer.matching of colors,white,yellow, brown and green.connecting to white,yellow ,yellow brown,brown,green brown

asked by: Robert

0

Expert Reply:

On a 4-Way flat trailer wiring harness, white is the ground, brown is running lights, yellow is left turn signal and green is right turn signal.

It sounds like your trailer has a wishbone harness. A wishbone harness splits the running light circuit at the connector so you do not have to run a jumper from one side of the trailer to the other side.

On a wishbone 4-Way connector the white wire is ground, yellow is left turn signal, yellow/brown is left side running lights, green is right turn signal, and green/brown is right side running lights.

If there is a 5th pin then this most likely goes to an electric reverse lockout solenoid, typically found on boat trailers. In order to use it you would need a 4-Way to 5-Way adapter on the vehicle, # 20036. I have linked a video showing a typical installation for you and a link to our FAQ article on wiring.

expert reply by: Michael H

0

Rob B.

4/6/2020

Only right side is out on my trailer. 4 prong connector. Can I only replace green/ brown wire to right side. How connect to 4 prong harness.

Reply

Chris R.

4/7/2020

You could certainly just replace the wiring on the right side of the trailer, but I would first make sure that the trailer wiring is the actual issue. Have you tested the 4-Way on the tow vehicle to make sure the problem isn't coming from the truck? If you are able to verify that the issue is on the trailer - I would try inspecting the wiring before replacing all of it. It might just be a short portion of damaged wiring that needs to be replaced (and not the whole length). Also make sure the light assemblies themselves are good and that they are still securely grounded.

Helpful Links

faq-4-5-way-troubleshooting.aspx

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Answer 1

Did you have a 4-pin connector that had 5 wires or was it a 5-pin connector? There is a big difference since you normally see a 5-pin connector on a boat trailer with the 5th pin used for an electric reverse lockout solenoid on a brake actuating…

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Answer 2

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…

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Answer 3

As long as one of the wires coming from the back of the hub is a ground and the other is a power, it does not matter which wire on the magnet goes to which wire from the back of the hub. I have included a link to a video of a magnetic brake…

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Answer 4

Your 4-pin/5-wire wiring harness is what is called a "wishbone" type which simply means that there are two separate running light wires, one brown and one pink. This allows a separate running light wire for each side of the trailer…

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Answer 5

For replacement Dexter manual adjust brake assemblies to replace your 36-19 you would want the part #23-27 for the right hand side and part #23-26 for the left hand side. These are manual adjust 10 by 2-1/4 inch Dexter brake assemblies that would…

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Answer 6

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 7

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 8

You do have the wishbone trailer wiring setup. What that means is that if you have a solid brown wire it attaches to the brown and green wire as well as the brown and yellow wire. Yellow goes to left stop/turn, green goes to right stop/turn, and…

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Answer 9

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 10

The red wire is the turn signal wire and will be run to the green wire of your harness if its the right turn signal side, and the black wire will run to the brown wire of your harness. The yellow wire from your harness will run to the left turn…

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Answer 11

I wasn't able to find much about your Magnetek 6345 power converter but I was able to find out that it has a max 45 amp draw and is rated for AC/DC use which both match the Progressive Dynamics 4000 Series Inteli-Power Converter #PD4045KA. It is…

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Answer 12

Electric trailer brakes have magnets that have two wires like those you can see in the #AKEBRK-7-SA electric brake kit. These two wires are not color coded or labeled because either can be use for power and the other for ground. You can ground your…

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Trailer Wiring Has 5-Wires White, Yellow, Green, Yellow/Brown, and Green/Brown

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