KX220R

Haha! Thanks for the advice. I'll take a picture of the front, but the one out back is already toast.

Steve, I went out today and took a picture of the two daytime running light relay sockets that I was referring to yesterday. I found out the hard way that just because there happens to be an empty socket with wires going to it, doesn't mean it wants a relay plugged into it. At least not when Navistar put it together. Five relay sockets were added to the forward bulkhead besides the relays located on the main board. If the RV wasn't wired for daytime running lights then the two I now have labeled "Do Not Use" don't need a relay. Trust me, they don't want a relay either. I had a small pile of blown fuses to prove it. That's my somewhat embarrassing story. I hope it helps someone in case they do the same thing I did. Here's another view that shows more of the board.

I appreciate you pointing me toward a potential valuable resource. Luckily, I have all my current electrical gremlins healed.....for the moment! I'm sure the future will throw me some more curve balls. I know I'll be looking for those wiring files at some point. Not having to guess where the wires go will be a huge step in the right direction. I still have a ton of things to get done on the ole girl but I'm afraid it's all the dirty, tedious stuff that I put off for last. The RV is basically put away until Spring. In the Spring I'll be tackling the list once more. Thanks again, Kevin

Hi Tom, Thanks for the welcome, it's appreciated. I'm afraid this might be the only pic I currently have of the FRP in my 2011 Diplomat. I'll try to get better ones tomorrow if the weather isn't too bad. One of the DRL relay sockets is located in that forward cluster. I really don't remember where the other one was for certain but I'll focus my camera on the ones I put labels on so that everyone will know not to install a relay in them. If only RoadMaster or the coach builders had been kind enough to do that. It sure would have saved me hours of head scratching. I don't think I have any pics of the RRB. I currently have a cover on the RV and I think it's supposed to rain tomorrow but I'll do my best. REV tried to get me schematics from their archives but had little luck I'm afraid. They sent me some odds and ends from other years and models but I guess NAV didn't leave them much to work with. Thanks again, Kevin

My wife and I just purchased our RV this Spring in hopes that I can get all the bugs worked out before I retire in three years. We did an inspection of the RV ourselves and were aware of a multitude of issues it had prior to purchase. We knew it had a lot of minor systems issues and so did the previous owner so we were able to negotiate a deal that took all the issues into account. That being said, I'm ashamed to say that I created this issue myself and had no idea. I assumed it was an issue that I missed when I inspected the RV. In my RV's forward electrical bay there were several relay sockets that were unoccupied when I purchased the rig. I just chocked it up to the previous owners having removed them to use in another system. I promptly ordered replacements and installed them assuming whatever system they powered would now work. I then went on to troubleshoot the other 75+ items I had on my to-do list. Not until I finally got the windshield wipers working a month or so later did I notice my headlights didn't work. It took me an embarrassing amount of time to figure out what the issue was. Come to find out RoadMaster prewired the electrical bay for daytime running lights in the event that the RV were to be sold in Canada. They were required in Canada at the time and apparently not here in the states. My electrical bay has relay sockets for the day time running lights. When I installed relays in those empty sockets a month earlier they were shorting out my headlight wiring. If the RV had been sold in Canada there would have been a separate module installed that would have been controlled by the relays. Once I removed my two unnecessary relays and replaced the blown fuses, my lights worked like a charm. If you're lucky, there's a relay installed in a socket that shouldn't have one. As soon as I learned my mistake, I immediately printed labels and placed them over the unoccupied sockets. I wish you good luck with your project. These things can be frustrating when the wiring diagrams are almost impossible to find for our rigs these days. If I remember correctly the empty sockets were in the cluster against the forward bulkhead that looks like an afterthought. If you need a picture, let my know and I'll go out and take one for you. It almost seems like the 2nd relay was in the bottom, forward position of the main board.

Did you ever resolve your headlight issue? If you haven't, I may have had a similar experience with my 2011 Diplomat. It's possible we both had the same problem. If you're still having the problem, let me know and I'll share what I found wrong with mine.