Unsure of what I am doing

I have a 2018 tacoma basic package 4 cylinder. I bought a light trailer for hauling small things like wood furniture or bags of trash. Nothing to beefy. But I want to make sure it is properly hooked up. How do I get the lights on my trailer to work?

 

Welcome.

If your truck doesn't have a 4 pin flat plug, take it to either a trailer dealership or a U-Haul and have one installed.

Plug it in, start the truck, turn headlights and left turn signal on, and do a walk around to verify trailer lights. Repeat for right turn signal. If turns work, brakes work, since it's the same light bulb.

 

Nice of her to respond to your answer. Oh well