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Roadmaster Diode 7 to 6 Wire Coil Kit Installation - 2022 Jeep Wrangler Unlimited

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How to Install the Roadmaster Diode 7 to 6 Wire Coil Kit on a 2022 Jeep Wrangler Unlimited


Hey everyone, how's it going Today, we're gonna be going over the Roadmaster Diode Wiring Kit here on a 2022 Jeep Wrangler Unlimited. So a diode wiring kit is just gonna be one of the many things that we need in order to successfully flat tow our Jeep here. Now, what this does is, this is gonna transfer these signals from the motor home to our Jeep. So we can let other motorists out on the road know what signals we're gonna be making, allowing us to arrive to our destination, safe and sound. Now, this is not only a safety requirement, it's also a legal requirement in nearly every state when you're flat towing your vehicle. So it does require that we splice into the factory taillight circuit but it's only two wires on either side.

And I really wouldn't put too much emphasis on this because there's actually diodes that are designed to prevent any issues from the motorhome from affecting the lights on our vehicle. So those diodes basically prevent the backflow of electricity. So you don't ever have to worry about your vehicles' taillights going out due to an issue on the motorhome. Everything is gonna be separated. So they're both gonna work when you need 'em to.

So the great thing about these kits is that they are complete kits, meaning they come with everything you need to get the lights working. So in addition to the wiring and the diodes we'd all install in our Jeep here, there's a couple other things that compose of this kit as well. Number one, perhaps probably the main thing is your umbilical cord. So you can see we have three different options for umbilical cords because this kit can come with either of these three umbilical cords. Now it's pretty easy to choose the right one.

It's really not so much preference as it is what tow bar you have. So if you have a tow bar with integrated channels in there that your safety cables run to, and they also recommend running your wiring through there, you'd wanna make sure that you get an umbilical cord with the straight cable or the hybrid cable which is partially coiled over here at the motorhome side, and then straight, so you can run it through the arms on your tow bar. So both of those options are good if your tow bar has those integrated channels. If your tow bar does not have the integrated channels like this one here, you're gonna want to go with a coiled, a completely coiled umbilical cord because that way, your wires aren't dragging the ground because you need enough slack to be able to make turns but you don't want too much to where it's dragging the ground. So, that coil design is gonna keep it nice and tight with a tow bar there, so you're not damaging your wiring.

So in addition to the umbilical, we're also gonna get our trailer connector. So what's great about this kit is it doesn't utilize a standard four-way. It utilizes a seven to six-way. The vast majority of motorhomes on the market that are gonna be capable of flat towing the vehicle are gonna have that seven-way. So it's gonna be directly compatible with your motorhome and then having the six-way on the vehicle side allows you to route additional circuits through this umbilical cord, such as a battery charge line, should you have the need to add one. So to start your installation for your wiring, you're probably gonna wanna remove the skid shield on the Jeep. You may have a metal one or you may have a plastic one. The plastic one is held in place with some push fasteners here on the bottom edge of the bumper, and then there's two screws in the corner there. It's pretty easy to remove, but once we get that out, we're gonna go ahead and take our wiring harness bundle. And I'm actually just going to loop it around our base plates on our vehicle there. And this is what we'll do. This is what we're gonna connect to our trailer connector there, once we get finished. That'll be the last step, but the first step is just routing this wire all the way from the front to the rear of our vehicle back where our taillights are. We're gonna go ahead and do that now, and then we'll show you the path that we took. So we've got our wire in now. We went up and over the metal skid shield and we actually used some of the wire loom that comes in your kit here for this first foot or so. And we've got some zip ties here just to sort of secure it 'cause we need to be careful. There's a lot of moving suspension components here. And then we went up and over the top of the frame, you sort of go around the strap mount or the shock tower mount there above the frame because we want to avoid all this stuff. We have the steering column up there as well. So be very careful, just take some extra time, secure your wires with the included zip ties there, so it doesn't get tangled up. And it's gonna be kind of hard to see, but we're gonna go all the way over to the top of the frame. And then we actually have it tucked behind this heat shield here because we have a lot of exhaust piping here which gets really hot. So we wanna make sure we protect that wire. So it's coming from the top of the frame here and then I just have it tucked behind the heat shield with some zip ties, securing it behind there. And we're pretty much just gonna do this all the way back. And again, our wire is still tucked behind that heat shield coming all the way back till here where the heat shield ends and you can see our wire, we're gonna go up and over the frame above this cross camber, keep following it. And we have some more zip ties securing it to the factory brake lines, go up and over this other cross camber here. A wire's gonna come out over here and then we're gonna go up and over the outside of the frame and we're gonna route it down here. We're gonna go ahead and leave it here for now because we need to remove the vehicle's taillights before we feed the wire up there. So in order to remove your taillight, we're gonna be starting on the driver's side. You're gonna wanna go ahead and open up the tailgate and the back hatch here. And then we're gonna look directly inside above this little platform in here. So we're gonna have a little cover panel there which we'll remove with a flathead screwdriver. Go ahead and just flip that off. And then we're gonna have a plastic nut down there that we need to remove with a 10-millimeter socket. With our nut removed, we should just be able to pull the taillight housing away from the vehicle. Go ahead and unplug your electrical connector. Pull out on that red locking tab, depress that clip, and then you should be able to separate the connectors. So now you're gonna reach down from underneath and there's a pretty good open slot there you can just feed your wire through, and now we're just gonna pull it the rest of the way. So now that we have our wire inside the taillight pocket, I like to take a zip tie and just secure it somewhere in here to an existing wiring, that way, it doesn't fall back down. But what we're gonna do now is we're gonna separate all the strains on our wiring harness. So just separate each of these colors. So now that we have our wires separated, the first one we're gonna secure is the ground, which is this white wire. So we have plenty of extra here. I'm gonna go ahead and cut a lot of that off. Then I'm gonna strip back some of the jacket and crimp on the ring terminal that comes in your kit, and then we're gonna secure it to a bare metal surface inside the taillight pocket here using the provided self-tapping screw. Now we need to start stripping back the fabric tape on our taillight connector because we need to access these wires because they're the ones we're gonna be slicing into. So, we're gonna go ahead and cut off a little security holder there, and then I'm gonna take a razor knife and I'm gonna carefully cut this tape off, making sure that we don't pierce the wires. Now, if you get lucky enough and find one of the ends, you might be able to peel it off, but it's usually not that easy, which is why I'm just gonna get out our razor knife now and just be super careful to peel that back without damaging our wires. So now that we have that fabric tape off, we've already went ahead and did the hard part and tested the wires for you. So we're over here on the driver's side and the wires that we're gonna use are the yellow, which is gonna be for our stop and turn, and then the white/gray, which is for the taillights. So we're gonna go ahead and cut these about midway. And once we do that, we're gonna go ahead and strip some of the jacket off each of these wires. So we're gonna start with the yellow wires here. You're gonna take the blue spade terminals that come in your kit and you're going to splice one of those onto each of our yellow wires. Now, once I have one on each of those, we're gonna take the yellow wire coming from our wiring harness, we're gonna go ahead and cut a lot of that extra off and we're gonna splice on another blue spade terminal to this one. Now, once we've done that, we can go ahead and take one of our diodes here, make sure the single output side goes towards the connector and just simply slide these spades over the terminals. So now we're gonna do the same thing for our white and gray wire. So I'm gonna take the brown wire and clip the excess off just like we did for the yellow one but we're actually gonna save this 'cause this is gonna be our jumper wire that's gonna run over to the other side of the vehicle. So what you do is you just twist these two ends together just like that. And you'll notice one of your diodes in your kit is different, it has a yellow spade terminal, and that's the one we're gonna attach to these two wires that we just twisted together. And aside from that, everything is gonna be pretty much the same as the one we just showed you. So, the two other blue spade terminals will go on each end of our white and gray wire. Now once we have all those connections made, make sure they're nice and tight here, and then we'll go ahead and plug in our diode. There we go. Now what we're gonna do is I'm gonna take the backing off of both of those diodes there and just stick them to each other. Now the only thing we have to do is we're gonna take the green wire that we have left and the other end of our brown wire, we're gonna route that back through the hole that we came up through earlier and over to the other side of the vehicle. So now that we have those wires routed back underneath the vehicle, we'll go ahead and resecure our taillight. So your brown and green wires are gonna come down sort of in this area over here, you're gonna route them up and over the frame rail. And then I pretty much just zip tied them to the top of this cross beam section here all the way across over the frame rail here until you see our wires dangling down. So what we're gonna do next is we're gonna do the same thing that we did earlier. We're gonna reach down through that taillight pocket there and pull our wires up through there. So we've got our two wires pulled up into the taillight pocket here over on the passenger side. Now there is a little hole down there that you'll sneak your wires through. And it's pretty easy to reach from underneath, although it's kind of hard to see, but again, we're just gonna take a zip tie and secure our wiring up here. That way, it doesn't ever fall back down. Go ahead and cut some of our excess wire off and start stripping back the jacket. Now our wires in the taillight connector here, we're gonna have two of them. The green one is gonna be for the stop and turn signal circuit and then the white and orange one is gonna be for the taillight circuit. So same thing as we did on the other side, separate 'em out and cut them. Now from here on out, we're pretty much just repeating the same process we did over on the other side but with different color wires. So now we're ready to install a trailer connector so we can test our wire. Now we're just gonna temporarily be doing this because we still have our skid shield off. So I'm just gonna go ahead and separate these wires here as best as you can. Peel some of the jacket off them and then we'll attach them to our trailer connector. So now's a good time to go ahead and hook up to your motorhome, that way, you can run through all the signals, make sure they're working correctly. We'll start with our taillights here, our left turn, our brakes, and then finally our right turn. So now we're ready to install our trailer connector here. Now most of your base plate kits are gonna come with some sort of trailer connector mounting bracket integration. This particular base plate kit is a Demco base plate kit and this is a trailer connector mounting bracket it comes with, it just simply bolts to the base plate there, makes things nice and easy for you. So, if you don't have one of these, you will need to find some sort of way to mount this trailer connector here. They do make brackets for that, but most of the times your base plate kits are gonna have a mounting bracket that probably work with this plug. So, chances are you're gonna be in the clear there but now we're just gonna go ahead and proceed mounting this to our trailer connector mounting bracket of choice. We've just got our wire running through here. Now we went ahead and reinstalled the skid shield here. I recommend doing that as well before you install the trailer connector. You can see we've got some extra wire here. I'm gonna go ahead and split all the ends on these. Well we got plenty of excess, I'm gonna come back here and just trim that off. I'm also going to use some of the extra wire loom we have in our kit to just sort of hide this wire here. So it looks a little bit nicer, but what I'm gonna do next is we're gonna take our rubber boot there and stick that over the wires, just like so. And then we're gonna begin stripping the jacket off of each of these wires. So now that we have our wire stripped, we'll go ahead and attach them to the terminals in the back of the trailer connector. They are labeled, GD is for ground, that's gonna be our white wire. So you just loosen the screws, stick your wire in there and then tighten them back down. We have LT, that's gonna be for our left turn. So that is our yellow wire. Now, the reason I twist these wires is because I don't want those strands to fray and potentially cause these circuits to jump across the terminals there. But then RT is gonna be right turn, that's gonna be our green wire. Then finally, we have our brown and I'm gonna be looking for TM. This is for the taillights. So now, this step isn't required, but I do recommend it. We're gonna take some gasket maker and we're gonna cover up all those terminals. That way, water doesn't get in there and corrode the circuits. This is just from my experience in doing this and a lot of the times, if you don't fill these, they can come back with lighting issues because there's water that gets in there and corrodes everything. So I'm just gonna work that in between the wires and the sockets as best as I can, and then I'm just gonna cover all those up. So now we're gonna take our trailer connector here. We're just gonna secure it to the bracket like so. It's a pretty tight fit. And on the backside there, we will use our boot there to cover everything up. And now we're just going to secure our trailer connector to the mounting bracket with our hardware. And that's gonna do it today for our look and installation of the Roadmaster Diode Wiring Kit here on a 2022 Jeep Wrangler Unlimited..


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