Trailer wiring question??

[MET]

Always something!

so ALL of my lights on the trailer work, EXCEPT the right side lights when I turn headlights on???

Any idea where to start and try to trouble shoot? Boatmate trailer. I can’t find the culprit??

Anyone know which color/s is headlights?

thanks- MET

[rocketmanjp]

Brown is running lights on both sides.

[MET]

Awesome! Thank you

[Jeremy]

Its Brown.....please let me know what you find......I'm having a similar issue! I'm thinking its got some copper exposed from the sacrificial metal in the tubing rubbing wires....grounding out and loosing power but it won't short out because the wiring has the Ground back to the truck and not the trailer. my other 5 trailers have the trailer grounded and the lights ground to the trailer bye the screw into the trailer metal

[MET]

I found that near the tongue they tie 2 sets of wires and 1 down each side. I took apart that mass of wire and yes, one of the browns was disconnected from the sleeve that was used. Reconnected everything and all good. Good luck-