HI everyone,
I's new to the site, thank you for the add!
I have a 2016 RAM, 3500 crew cab with the 6.4 hemi, I love this truck! Recently I installed my old Fisher 3 plug plow to my truck. I bought the new wiring harness from a dealer and went to install it myself. I found the truckside wiring for the lights under the fuse box, and spliced in my plow wires. The plow works, goes up down and side to side, however the headlights dont work, as well as the parking lights. The blinkers and hazards work. I put a test light on the wires going to the headlights and there is no power going to them. Is there a fuse or relay I'm not seeing? Why would this not work?
Thanks in advance!

 

You talking about the lights on the plow or the lights in your truck?

 

I'm talking about the wires that are under the fuse box that are specifically used for splicing into the plow harness. There is no power coming out of these wires.