Trailer light question

[alltelracer]

I needed to replace one of my trailer lights. I bought LED lights, but I have a connection issue. The new light has a red, black, and white wire. My trailer wires are red, black, white and a green. I left the green disconnected. I have running lights but no blinker.

[Ketchup]

each LED light needs to be grounded. If not it will do what you stated. Their not like the old 1157 bulb lights. But very bright and nice.. Just upgraded all my trailer lights to LED.

[Ketchup]

The way it is, i doubt you have brake lights also.

[jdmidwest]

Odd combination of colors. White is usually ground on trailer lights. Play with the lights and see what you can get. Brown is common for tail lights, yellow and green is for signal, white is for ground on the wires if I remember right.

[Muddy Water]

Right turn = Green

Left turn = yellow

Ground = White

Tail light = brown

Might would be best to run a new wiring harness from the tong back, that would correct the non standard colors. Or just do trial and error

[Seth]

I agree with running a new harness as well. I've never seen a trailer that didn't use green/yellow/brown/white. It will simplify things.

[jdmidwest]

For best results, run a dedicated grounded white wire to each light, don't rely on the ball of the trailer to ground the lights for you.

[Unimog]

A test light is your friend in a situation like this. Your running light will go to one wire in your LEDs and the brake/ turn to the other.

[motoman]

I had goofy trailer light issues initially on my new-to-me trailer with LEDs. I crawled under the trailer and cleaned all individual grounds; and noticed the main wire harness ground was not connected to anything. So I found a spot for the ground; dremel wire wheeled a small spot to bare metal; dielectric greased the spot and connection and solved my issues. Might be different from your situation, but just a thought to address while dealing with the trailer wires.:-)

[Ranger Dave]

Your new lights should have 3 wires. The new lights should have come with some type of paperwork to indicate the function of each wire. One wire should be a ground, one wire should be the tail light, and one wire should be the combination brake light/turn signal. Your old lights probably only had 2 wires coming out of the housing but they were 3 wire lights as well; one wire for tail light, one wire for combination brake/turn signal, and one wire for ground but this ground wire is probably internal off of one of the mounting bolts. Since you don't have a brake/turn signal I am guessing the green wire is for the brake/turn signal. However, I can't determine if the wires you already have connected are correct because your color code is non standard and I don't know what color of wires you connected to at the new lights. The main plug should have 4 wires; white for ground, brown for tail light, yellow for left turn, and green for right turn. There should have been 3 wires at each old light, the left light should have had a yellow (turn signal), brown (tail light), and a wire (ground) but like I said above, the ground could be connected to a mounting bolt since the trailer itself acts as a ground wire. The right light should have had a green wire, brown wire, and a ground wire. Replacement should have been straight-forward, you remove a light with 3 wires and replace it with a light with 3 wires.