Roadmaster Universal Diode Wiring Kit Installation - 2020 Jeep Gladiator

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How to Install the Roadmaster Universal Diode Wiring Kit on a 2020 Jeep Gladiator


Shane: Hi, I'm Shane with etrailer.com. Today I'm going to walk you through how to install Roadmaster's diode wiring kit on your 2020 Jeep Gladiator. The diode wiring kit is going to be one of five main components for a flat tow set up on the Gladiator. The other four are going to be your baseplate, your braking system, your tow bar, and your safety cables. Diode wiring is going to allow vehicle signals from the motor home to get transferred back to the back of your towed vehicle or to the back of your Gladiator so that you're legal and safe. Everybody around you is going to know what's going on, whether you're braking, turning, or driving at night.

You can see here we have our flashers on and we're getting our light signal back. What's nice about these is that it allows us to utilize our factory taillights. We're not going to have anything we have to do once we get it installed. All we got to do is plug our wire in from our motor home to the front of our Gladiator and we're ready to go.It's going to have diodes that are going to connect to factory wiring behind each taillight. Those diodes protect the factory wiring on the vehicle from any backfeed from the motor home and vice versa.

There are a couple other types of lighting setups that you can get. One of them's going to be bulb and socket. It's going to work similar to this except you're going to have a second bulb that's going to go inside. The only thing with that is you have to drill a hole in the back of the taillight housing. If you don't get that just right, the bulb doesn't seal and you can get moisture inside.

The other one is going to be your magnetic lights. On these vehicles, it's kind of hard to get a magnetic light on them because there's nowhere really to stick them. With the magnetic lights, you're also going to have wiring that's going to have to run up to the front of the vehicle, and it's always going to be outside. Once you're done with those, you got to find somewhere to store them all the time. With these, again, once you install them, you don't have to do anything else but plug your wire in in the front from the motor home.We have our flashers on, so you can see we're getting our signal to our factory taillights.

Also, these are not going to affect the normal use of the vehicle, so once we unplug from the motor home, we're driving the vehicle normal, our taillights are going to function normally. Not only is it going to give us our flashers, but it's also going to give us our brake signal, our turn signal, and our running lights. Now that we've gone over some of the features, let's walk you through how to get it installed.To start our installation, we're going to start here in the front. I did have to drill a small hole in my belly pan to get my wire to feed through there. You can see I have a little bit of extra hanging out. I just took a zip tie. You can use tape, tape it to the two rods coming off of your baseplate, feed it back behind. Then what we need to do is we need to run it to the back of the vehicle. You want to make sure when you're running it, you're staying away from anything hot or moving. What I did is went over top of my frame rail here on the outside, went through the frame rail here. Because it's a Jeep, a lot of off-roading, what I did is ran this all the way through the frame rail all the way to the back. With a Jeep, it makes it easy because there's holes all along the frame, and we can take a pull wire. I used an air line tube and just fed it through each of the holes from here all the way to the back.You can see how I had my wire running inside. It's going to stay protected, it's not going to get damaged by any rocks or anything like that. All the way to the very back with this being a Gladiator, which is nice. Actually, there's a hole on the backside of the frame rail right here that my wire comes out of. It's going to stay away from my exhaust also. Now what we'll do is we'll lower our vehicle, take our taillights out, and take our wires and run them up to our taillight.Open your tailgate. We're going to have two bolts right here. Use an 8mm socket to remove them. Then we're going to pull start back. These two pins right here go into those two holders right there. Make sure you don't pry out too much because you don't want to bend the metal. You're just going to twist your bulbs to remove them. Then we're going to unplug this light here. To make sure, you're going to push up on this red tab and then push down on that black tab to disconnect this. Now we're going to separate all of our wires. We're going to leave the green one down below. We're going to take our brown, white, and our yellow and we're going to feed it up into our taillight pocket. I'm going to take my white wire, cut it down to size, and I'm going to ground it. Think I'm going to ground it right about here. We'll add on our ring terminal. We'll make sure it's not going to interfere with that. We'll just use the included self-tapper and get it into place.Then we need to determine our brake and turn signal and our running light signal. It's going to be the same on both sides. Our yellow wire is going to be our brake and turn signal. Our white wire is going to be our running light signal. Strip it back enough where you're going to have enough room to work. I'm going to start with my brake and turn signal. Go ahead and cut that wire, strip back both sides. You're going to have some female spade connectors. Put one on each of the wires. Single side for the diodes is going to go out towards the light. The diode now just recompleted that circuit to our light. Now we'll take our yellow wire from our wiring kit. We're going to cut it to size, add on our female spade connector. We're going to add it on this side here. That gives us our brake and turn signal from our diode kit and gives us our brake and turn signal from the vehicle when we're driving it normally.Take our white, we're going to do the same thing. Split our wire just like we did the other one. Again, add on your diode, recompletes our circuit. The only difference between this one and our turn signal is, with our brown wire, what we're going to do is we're going to cut this to length, only we're going to strip back the part we just cut off and the other one. Take your two stripped ends, you're going to put them together and you're going to add on a large yellow spade connector. It's going to go on the other side. You're going to take your wire, brown wire, that you have added on and you're going to feed it back down because we're going to run it over to the passenger side with our green wire. That's going to be our running light signal for the other side.Now to keep our diodes together, what I'm going to do is take a two-sided sticky tape on one of them and we're going to stick them together. Then I'm going to take a zip tie. Zip tie comes in your kit. I'm going to zip tie these together like this. Then I'm going to take another zip tie, I'm going to zip tie it right to the factory wiring.To run our green and brown wire over our passenger side, you're going to have this bracket here for our bed onto our frame. There's a slot. You can see where my two wires are coming through. I ran it through here, straight across to the other side, through the other one, came out on this side and went right up same way I did on the driver side up to my taillight pocket on the passenger side.For our passenger side, connecting them is going to be basically the same. The only difference is we're only going to have a single brown wire instead of a double. You'll notice it's white. I did have to extend it because it wasn't quite long enough so I had to just use an extra wire that I had cut off from the other side and added it on. I will recommend using a heat shrink butt connector because all of this is open down here and moisture getting on that could cause is to corrode a little bit quicker than what you probably want. Now we'll do the same thing here, stick these together, zip tie them, and then zip tie it to the factory wiring, reinstall our taillight.Now I've temporarily installed my six-pole plug on the front of the vehicle just so I can test out my wiring and make sure everything's working correctly. We're going to use an alternate power source that's going to simulate being hooked up to your RV. Taillights, left turn, brake lights, right turn. Once you've tested it all, you know it's working correctly, if you're not going to go any farther than this, you can go ahead and feed any extra wire you got in there, install your six-pole plug onto your rods here using some self-tapping screws. This six-pole plug does not come with this particular wiring kit. If you're wanting a diode kit that does haven't six-pole plug included, you can find that here at etrailer.com.What I suggest is, if you're not adding anything else like a battery charge line, fill the inside of this with silicone where the wires are connected onto this plug on the backside because it will corrode. I'm going to be adding a charge line so I'm actually going to be taking this back off. That's why I haven't completed it yet, but, as I mentioned, if you're not, add your self-tapping screws and then maybe some wire loom around there just to help protect your wires and clean it up a little bit. That being said, once you get that done, you're ready to go. That's going to do it for a look at an installation on Roadmaster's Hy-Power diode wiring kit on our 2020 Jeep Gladiator.


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