Originally Posted by drwwicks
I have a new to me, 2007 Itasca Horizon 40FD and a trailer wiring issue. On the tow dolly, the left turn and brake lights don't work. Running lights, right brake and turn work. Coach lights work. The Freightliner chassis owner's manual shows circuit breaker and fuse panels, one of which is the optional Tow Power PDMs. In that panel there are separate fuses/CBs 20A for the left and right "Tow left turn" and "tow right turn". Problem is I can't find that panel. It's not in the electrical compartment forward of the lefty from wheel, can't find one in generator or engine compartment, and also can't find one in steering wheel vicinity. These are locations mentioned in the owner's manual without being specific where.
Thanks in advance.
Many folks have been stumped on the location of the fuses you're looking for. Freightliner, in its infinite wisdom, located the fuse "block" in a remote area far away from any other fuses and electrical control systems in the coach. On some, like ours which is a 2004 Itasca Horizon 36GD with the C-7 330HP CAT, that fuse block is located inside the leuvered left rear panel covering the dash A/C condenser. You have to unscrew a couple of screws on the side and, a couple on the bottom of that panel and, raise it just like a compartment door.
Then you'll see not only that fuse block but, other electrical control boxes to.
But, on your Horizon, I'd just about bet it's inside the shore power compartment. And, it's HIDDEN! I say hidden because it's behind a small panel, in the upper right hand corner, close to the door. That panel has to be removed, again, by a couple of screws. Then that SHOULD reveal the fuse block for the trailer plug on the rear of the coach. Take a look there and see if what I'm telling is correct or not. Let us know what you find.