Led trailer wiring

[Lsfishon]

I recently switched my standard lights to LED on my small boat trailer. Old lights had standard two wire connection. New ones have 3. Green, black,red. Only info was green to brake. Red to positive, black to negative.
Here is the problem. When I turn the headlights on, the marker lights(spliced into brake line?) work but nothing else will. With headlights off, all turn signals ,flashers, and brakes work. I didn't do anything to the wires except try different configuration connecting the two wires to three. Thanks for any info.

 

[lckstckn2smknbrls]

I would think it's a grounding issue. I like to run a ground wire to each light.

 

[Powerstroke in a Prius]

Is there a model or part number on the light kit? This sounds like the instructions may very well have had a translation issue.

 

[mla2ofus]

the marker lights(spliced into brake line?) work but nothing else will.

I'm not sure what you mean by this.
Mike

 

[briangcc]

It sounds like something is mis-wired. Standard 4 pin? Here's the diagram...

 

[MH Hawker]

and you may need a converter

 

[tlewis1]

Great pic briangcc! Making sure a save that one.

 

[Lsfishon]

Ok how about this. New LED lights have three wires coming out. Directions say red is positive, black is negative, green is brake. What do I connect to positive and what do I connect to negative? And when I clamp my tester and touch the frame, the light goes on but it doesn't when I poke the wire. Hhhmmmm???

 

[Lsfishon]

It sounds like something is mis-wired. Standard 4 pin? Here's the diagram...

I'm familiar with two wire diagrams. They all have yellow and brown and green. No diagrams that I have seen tell you how to connect the red, black, and green wires from the LEDs to the brown , yellow, and green wires from the trailer

 

[GA_Boater]

Someone asked earlier what brand of lights?

Guessing;

Green light wire to green wire on right side, green light wire to yellow wire on left side - Those are the brake/turn lights.
Red light wire on both sides to brown for tail, marker and license lights
Black to ground or white wire from the flat trailer connector

 

[MH Hawker]

sort of sounds like its for one of the split brake light systems

 

[briangcc]

Actually I think GA hit it on the head as the LED's probably have a couple circuits on board to control the different functions/brightness required.

This could be confirmed by a call to the manufacturer or by posting up what kit was purchased so we can try to reference the manual and make heads/tails out of it.

 

[GA_Boater]

Nothing fancy about how they work. LED trailer light brightness is controlled by the number of powered LEDs. Tail lights might be 3 or 4 LEDs and brake/turn is twice or 3 times more. The brake/turn LEDs may emit more light depending on the design. So wiring the lights is the same as incandescent filaments.

 

[roscoe]

I would really like to see info on these lights.
Brand ?, type, advertising ?, link ?
Intended uses ?

Have you tried what GA posted in post number 10 ?

 

[briangcc]

From a bit ago...

 

[Blind Date]

So wiring the lights is the same as incandescent filaments.

+1 - I've converted both my snowmobile trailer and the the trailer under my SeaRay to LED. They wired exactly the same way as the incandescents. The only lights that should've 3 wires are your tail lights(Ground, power for running lights, power for brake & turn signals). Your running/marker lights should only have 2 wires. If they have 3, they are not running/marker lights.

 

[dingbat]

I'm familiar with two wire diagrams. They all have yellow and brown and green. No diagrams that I have seen tell you how to connect the red, black, and green wires from the LEDs to the brown , yellow, and green wires from the trailer

I did this a couple of months ago
Red marker lights (splice) goes to Brown. Black to ground.
Green (brake wire) goes to green and yellow on trailer. Black to ground
Red (positive) goes to Brown. Black to ground