Got some alone time, and I went out to the barn and measure the voltage across pin 4 to 1 on the back of the truck at the connector and it was dead. Went under the hood and found 30 amp pink fuse in outlet 19 and pulled it out. I couldn’t tell if it was blown or not by looking at it. I put meter on it and ohm’ed it out and it was wide open (blown). I also check voltage on the fuse block outlet and one leg was hot with 12 volts as it should be. So I will pick up some new fuses tomorrow and see what happens. I hope it’s not a corrosion issue causing a short in the connector somewhere in the rear bumper. I did put the ohm meter across pins 1 and 4 and it was infinite ohms (no short shown) so it looks like when I install the fuse it should hold. Then I will have to plug into the trailer and see what happens. With a little luck this could be an easy fix. I do have to say it was nice to walk out there and have a plan on what to look for and how to attack the problem. Rather than my normal :h circling the truck 3 times and kicking the tires and shaking my head and cussing a bit and wondering just what to do next.
