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Roadmaster Diode 7 to 6 Wire Coil Kit Installation - 2014 Jeep Wrangler

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How to Install the Roadmaster Diode 7 to 6 Wire Coil Kit on a 2014 Jeep Wrangler

Speaker 1: Today on our 2016 Jeep Wrangler, we're going to take a look at and also show you how to install the Roadmaster diode wiring kit for towed vehicles with the seven wire to six wire flexo-coil kit, part number is RM-15267.Now this wiring kit's going to be the perfect solution for towed vehicles. This is going to take a working seven pole plug and we're going to transfer that right back as if our Jeep we're a trailer. So anytime the blinkers, brakes, or running lights come on in our RV, that's going to be transfer back and we'll see it on the lights on our Jeep.Now let's test our lighting system out. You'll want to hook it up to either a tester or your motor home. Start by turning on our running lights. Then we do our left blinker, our right blinker.Now the diodes are going to play an important role in our towed vehicle wiring, these prevent backfeeding.

We've got two inputs. We've got see here we've got the turn signal coming in from the motor home. We've got the turn signal coming in from the Jeep itself. Now when that signal comes in, it's allowed to pass through to our light. And when this signal comes in, it's allowed to pass through to our light.

The diodes prevent that circuit or prevent that current from running back up into the Jeep's wiring, if it's coming from the motor home or if it's coming from the Jeep side. It prevents it from going back up to the motor home. So we're not going to have any backfeed, keeping both of our vehicle protected.Now to begin our installation, we're going to start running our four pole wiring. Now ultimately we want this to end up just above our base plate. We'll run it up behind the fascia, but this is about 30 foot long.

So it's a good idea to run a portion of it. So we'll come just below the driver's door here, there's this forward body mount. I'm going to run my wiring right up along the frame. Bring some of that over. We're going to continue running that forward following along the frae rail, just avoid any sharp objects, any significant sources or heat or anything else that might cause damage to your wiring.Now typically when using this type of wiring harness, it's because you're going to be hauling it behind a coach or something like that.

That's typically also going to entail a braking system. So check the instructions on your braking system. A lot of times they need to tap into these four wires or at least one or two of them. So wherever you have access like for my braking system I'm going to bring my wiring right out of this grommet. That'll give me great access and I'm just leaving a little bit of extra here, so I can make those connections.Now we need to separate our white wire here. This just needs to run to a ground. And to do that, you'll just pull it away from the other wires. There's just a small piece of plastic that hold them together. So we've got a nice piece of plate steel right there we can use to give us a good ground. Now we can strip that white wire back. And to that we'll add the provided ring terminal. Crimp that down on there. Now we'll use the provided self tapping screw and 5/16 inch either socket or bit driver. We'll use that screw to secure our ring terminal.Now our three remaining wires, the yellow, green, and brown. I just like to follow along right with that fuel filler neck. It's going to be right here. It should bring us out right back here where we need it. And then we want to strip away that green wire away from the other two. Separate it and then pull. Now our yellow and brown wire, we're going to stick it right up underneath the foam pad. That is a pretty big opening there. We just want to slide it up in, push as much of it up in there as we can. We'll be able to find it when we head up top.Now to gain access to that wiring, we're going to remove the two Phillips screws located closest to the middle here. We can slide our light housings in just a little bit and pull them straight out. If we lift the little bit of loom, that's where that's going to come out. On the back side, you can see a couple different plugs and wiring. We want to focus on the plug that's up here on the top. You can see we've got a few wires that run into it. We're going to determine which of those wires controls which signal. It's a good idea to take some of this wire loom off of here to give you a better look at the wires. Just be careful as you do this, you don't actually want to cut the wiring. You just want to cut the loom.Now you'll go over to the passenger side. You want to remove that housing and the wire loom on that side as well. All right now we'll figure out what wire controls which operation. We'll start by finding our running light signal. So we'll have the running lights in the Jeep turned on. And we'll check each of our wires to determine which one has signal. All right now turn those off and back on, perfect. So it looks like the white with the orange stripe is going to be for the running light signal. Now we'll have the running lights turned off. And we'll have the brakes pushed. Now we'll check for that signal. Now off and back on. All right so our brakes going to come through the green and white wire there.Let's do the same thing on the passenger side. We'll have the running lights turned on and off and back on. So that's going to be the white wire. It's got a little purple stripe on it. All right now we'll have the running lights off and turn the brake lights on and off and back on. So the white and yellow will be the one we'll use on the passenger side for the turn signal and brake. At that point, we'll just press in on the tab right there. It'll allow us to separate our plug and we'll get our diodes put in place on both sides.Now here on the driver's side, we'll start bu putting our running light diode in. That's the orange and white wire. We're going to snip our factory wire. We'll strip both sides of that back. And we want to add on one of the blue female spade connectors. Just slide that over the stripped wire and crimp it down. It's going to be on each side, look just like this. You always want to give a good pull on them after you crimp them, just to ensure that they got a good tight fit there and they're not going to come out. We can do the exact same thing for our green and white wire. Now the yellow wire, we're going to trim that off so it's about the same length as our green and white wire there. And we'll add a blue female connector to it.Now the brown wire is for our taillight signal. We need to do something a little bit different with this. We're going to cut it. And we're going to combine both of these into one yellow spade connector. So let's strip both sides back. This allows us to split our running light signal. And the extra wire we have here will go over to the passenger side. Since we only have one signal coming from the motor home, if we only hooked it up here, only the driver's side taillight would come on. But by adding this, we can run that additional length to the other side and get the signal we need.Now we'll get our diodes put in place. You can see we've got two inputs and a single output. We'll start with the turn signal. So that'll get the green and white wire and the yellow wire. And then on the other side, we just need to connect our green and white wire, just like that. Now we'll do the same thing for our taillights. This time using the orange and white wire and our brown wire that we doubled up. You can see the double sided tape there. You're not really going to stick these to anything inside of there, just going to zip tie them off to the wire loom. So we'll stick the two of these together.Now the brown wire that we doubled up, we're just going to run that right back down through the hole we brought our wiring into and pull that slack out. Now once I have all of my connections made, I like to use some Loctite. This is part number LT37467. I'm going to fill in the back side of those connectors there. Just to prevent any moisture from getting in there. There's a lot of dust and stuff like that when we pulled this off, so it's been sometime off road. We can get the back of those filled. And if we can also see around that connector on top of the diode. You won't have to worry about any corrosion issues. Let's get our plugs back in our light. And we can put that right back in place.Now we're going to take the green wire and the brown wire that we extended. And we're going to take those over to the passenger side. I usually like to run right along the back side of the bumper here. Use zip ties to keep everything nice and secure. Now on each side there are little brackets. We've got one right here. The other ones going to be on the other side of the hitch. I like to run my wiring behind those and that helps give us some good support.Now I'm going to use a drill bit. You can pick whatever size you want to use. Just want to make sure it's large enough for the two wires to pass up through it. We're going to go right through the bottom of this panel. Of course check behind it to make sure there's no electronics there or anything you might be drilling into. Once we get through there, you can also see that white stuff. There's some foam up above it. You want to drill through that foam and kind of clear out an area for your wires to pass. We'll feed our wires right up through there. Once we're done making our connections, we can fill that in with silicone to reseal it.We'll draw our wires out just like we did on the other side. There's a little piece of steel right here. You can see we can use that to zip tie our wires off, there's a hole in it. We'll just back this a little further. Zip tie our wires off there. We won't have to worry about them ever hanging down below. Now remember for the taillight circuit on this side, we're using the purple and white wire. We'll snip it. The turn signal and brake we're going to use the white wire with the yellow stripe. Get these trimmed off, leaving a little bit of extra there. And we'll strip all six of those back and each one of those will get a blue spade connector. The only yellow one we use is on the driver's side.All right, now remember we're using the brown wire for our running light signal. That's the purple and white, so those will get plugged into the same diode. The green is for our right turn signal. That one needs to be plugged in with the white and yellow wire. And we'll just repeat the same process here we did for the other side, getting these stuck together and siliconed up.Now we're ready to get our six pole plug on the front of the vehicle. This allows this to plug in our flexo-coil. It's going to make the connection between the RV plug in here and that'll send all the signals through our four pole wire to the back of the vehicle. You'll also notice I've got an additional black wire here. This is for use with the braking system, just to give you an idea of what that's for. We're going to separate our wires out here. Just kind of pull them apart like we did in the back. You can see I've used a little bit of electrical tape, just to kind of come down. It's going to hide those wires a little bit better for us. Just going to trim these off all even, so we can get it through our boot. The boot's on the back side of the plug, you can just pull that off. Place all of our wires through, then we can start stripping those back. We're going to strip back and twist all four or five wires if you needed it for your application.On the back side of our plug, you see this is going to be the top. If we look at the back side, we've got a connection point here for TM, that's trailer marker. GD is white for ground. LT is for the left turn signal, so that's going to be the yellow wire. And RT is going to be for the right turn signal, that's going to be for the green wire. We are also going to be using the S, the S is what we're going to call our signal wire, that's our black wire. That's for a monitor light that's going to be installed in the coach. Again your application may or may not have that. You just want to use a Phillips screwdriver and back those set screws out. We'll place each of the wires into the hole. And then as you tighten that down, it gets a good bite on them.So starting there at the top, again we've got our trailer marker which is brown. Next one going counterclockwise is white. Next one's going to be left turn or yellow. Our right turn which is green. Then our signal wire there. I'm going to use a little more tape just to again kind of disguise that wiring, so it's just one color. Then we'll just bring that cover over the back side like that. We'll get it attached and tested. Now one tip that we like to do here is once we've tested this and we know that it's working properly. We're going to squeeze silicone in between all of these connection points. We're going to bring our boot down over. Then we're going to fill in all the way around there. That's just going to make sure water and moisture doesn't get in there causing corrosion.Now to make sure everything works, you just want to plug this into the back of your RV or any seven pole vehicle. Just make sure all of the lights are working. One thing you do want to keep in mind, is that you will need to install a brake light relay. Now we're going to use the wiring mount arms here, that we're attached to our base plate. If base plate doesn't have it, you can also use part number 18140 which would be a short bracket.Now the other part of our system's going to be our flexo-coil. This creates the connection behind the RV to the front of the Jeep. It takes a seven pole, most of your RV's are going to have a standard seven pole and as long as you have one that's working, we can plug that in there. The six pole goes in the front. That's going to give us all of our connections there for our lights to make sure they're going to work properly. You just want to place this in, making sure that this tab goes behind the one under cover.Same thing on the Jeep side, you can see our cover's got that little catch. We want that to sit right behind that metal lip. That's going to complete our installation of the Roadmaster towed vehicle wiring kit with a seven wire to six wire flexo-coil. Part number RM-15267 on our 2014 Jeep Wrangler.

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