Trailer wiring problems

mrmushroomman

Petty Officer 2nd Class
Joined
Feb 27, 2008
Messages
128
I am tyrying to figure out my trailer wiring. I have 4 plug coming out of vehicle and i had 5 wires on trailer but am trying to figure out how to run them into the 4 plug on trailer side. I know that green and yellow are brake lights and signals and white is ground. I have a brown/yellow striped wire with the solid yellow wire and a brown/green wire with the solid green total of 4 wires plus white ground wire making 5 wires coming off the trailer. How do i connect this into my 4 plug. Do i take both brown striped wires and connect them into the the solid brown wire on the connector and then solid yellow to solid yellow and solid green to solid green? When i hook it up like this i am getting one side brake and turn signal working but it seems like the tail lights aren't on when i'm not braking and can't get the other side to work at all. I took it apart and it seems to look good and bulbs are not blown. They are the werner submersible tail lights with the tear drop fixture. I disconnected the light and i do have current in the wires leading back to fixture. Fixture looks brand new. It is confusing me because i have the 2 stripped brown wires instead of 1 brown wire.It is on a EZ Loader trailer. None of my side markers or rear markers are working either. That could be due to blown bulbs.Some help would be appreciated and sorry thread is so long.
 

goegr

Cadet
Joined
Mar 11, 2008
Messages
6
Re: Trailer wiring problems

The two brown striped wires are for the running lights and the side marker lights. You have two so the wire can be run down each side of the trailer. Connect both to the brown wire coming from the plug.

I had a similar problem with my lights working intermittently. Bulbs were OK, read 12 volts at the socket but they didn't work! Turned out it was the ground. To make a long story short, I ran a wire from the white ground back to the lights (instead of using the trailer body). Presto, the lights worked like a charm.

Good luck!
 

mrmushroomman

Petty Officer 2nd Class
Joined
Feb 27, 2008
Messages
128
Re: Trailer wiring problems

Thanks. I will take a look at them when i get home. I have heard of the ground problems on the trailer before. I will check them. I do know that when i took apart the brake light it does have a white ground wire that is connected to a bolt on the trailer right behind the light and i'm sure it is like this on both sides. I will look at them and see what kind of shape they are in and proably run a ground from connector to both sides of brake lights and see if that helps.
 
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