Yes, just like you would anywhere else.
check fuses under the hood
Fuse is blown light connector is unplugged ground wire on trailer disconnected
Make sure you have a good ground
Trailer lights are sold at many stores nationwide. You can find trailer lights at home improvement stores. You can also find trailer lights at automobile repair stores.
I would check the running lights for one with a short. I had the same sort of thing with my trailer and I spent way to much time troubleshooting the brake and signal wires. Turns out a running light bulb connector was grounding out on the trailer and messing it all up.
Trailer Lights Not Working ProperlyWithout being able to physically see and troubleshoot the defective trailer light wiring system [from the attachment to the vehicle wiring harness (s) all the way to each of the trailer lamps [light bulbs], one can only speculate.I suspect that the cause for part of the lamp filaments working properly while some don't is the result of connecting some wires to the wrong wires.
Lights are always required to be installed on a boat trailer. This is so no one runs into the back of the trailer, especially at night.
Check the park lamp relay. It is probably next to the fuse.
You do not have the trailer lights connected properly.
form_title= Trailer Lights form_header= Install trailer lights with help from pros. Do you have a commercial trailer?*= () Yes () No What color lights do you want to install?*= _ [50] How many lights do you want to install?*= {1, 2, 3, 4, 5, More than 5}
Short circuit , maybe ????
lights are required to be installed on every trailer