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Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long

Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long

Item # 20127
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Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long Universal 20127
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2001 Jeep Grand Cherokee - Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long

  • Trailer Brake Controller
  • Wiring Adapter
  • Plugs into Brake Controller
  • Draw-Tite
  • Universal


Tow Ready Replacement Plugin Harness for the Tekonsha P3, Voyager, Prodigy, and Primus Brake Controllers. Also works with Draw-Tite Intella-stop Xtreme, Intella-stop Ultra, Intella-stop Digital, and Activator III (5520) brake controllers.

  • Wire lead length: 12"
  • Wire functions:
    • Blue: trailer brakes
    • White: vehicle battery negative terminal
    • Black: vehicle battery positive terminal
    • Red: cold side of stoplight switch


20127 Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long


California residents: click here


Video of Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Trailer Brake Controller Plug-In Harness Replacement Installation - 2015 Toyota Sienna

Clayton: Hi, everyone. Clayton here at etrailer.com. Here at etrailer.com, we install, test and review a lot of different products to help you as a customer make a more educated decision before your purchase. Today, we're going to be working on a 2015 Toyota Sienna. We're going to be taking a look at and I'll show you how to install the replacement brake controller harness for our Tekonsha Voyager. This is where our plug gets plugged into our Tekonsha.

This is simply so we can get all of our correct functions to the brake controller.This harness is going to work with Tekonsha and Draw-Tite brake controllers. For our application, like I said, we're using it for the Tekonsha Voyager. And in terms of installation, getting our harness installed really is not that bad. The hardest part is going to be running our wiring and just working in a tight space. With that being said, I'll show you how to get it installed now.

To start installation, we're going to be working in the floorboard on the driver's side. And now with our wire ran in from our 7-way, we're going to use the excess wire and run it back out to our battery for a connection to the battery for our pigtail harness.Now, what I did was, I just cut this white wire and put some tape on the wire from the brakes on the 7-way to mark our wire. I taped it to a long drill bit and I'm just going to push that right back through our hole in the firewall. I just went ahead and pulled a ground wire through the hole in our firewall. I used green since we're already using two white wires, just to make it a lot more simple.

And again, this is going to be our blue wire that connects to our pigtail harness. This is going to be our power wire and our ground. Looking at our pigtail harness, our black wire's going to be power, our red wire is going to go to our stoplight switch. Our white wire is going to be our ground and our blue wire is going to connect to the blue wire from our 7-way.And start with our ground wire. We'll simply strip that back and we can add a butt connector.

And I do like to leave everything kind of loose down here, that way it's easier to tuck up and hide. And then if we ever have to come back and make any adjustments, there's going to be a lot more room to work. And that's really nice when we are working underneath the dash. We can now add our white wire to our butt connector with our green wire. We'll crimp that down. Now I want to grab our power wire and strip it back. And for this one, we will be adding a yellow butt connector since our wires are pretty big.And we'll be grabbing the black wire from our harness and tapping that into here or adding it to our butt connector, I should say. If you remember, we added our black tape to this white wire to tell us which one was our blue wire. We can now remove that tape. Now with our tape removed, you can strip it back. Then you can trim a little bit of that off. I just wanted to get a good clean cut, now twist this. We're going to be adding a yellow butt connector to this, as well. We'll add our blue wire to the other side and crimp that down.Our next step is to tap into our stoplight signal. We need to remove this plug. We're going to push in on this tab and we're going to pull out. This part can be tough, just because it's tight. So push in, then pull out. And if you're having trouble, you can grab a small flat blade screwdriver, then push in on that connector and pull out. Just like that. Now we want to turn back our sheathing. You can use a small utility knife or a pocket knife, anything you have available. You just want to be careful not to cut any of the wires inside of our loom. Now that our wirings stripped back, we can pull our electrical tape off of our wires, just like so.I'm going to come back and just cut or wire them off. To make our connection to our stoplight signal, we're going to use a quick connect and a spade connector. All we're going to do is crimp this onto the blue wire from our switch and then slide this spade connector into the backside here. So to start, we'll take our spade connector and add it to our red wire and we'll crimp that down, just like so. Now we can move to our brake light cycle.Like I said, we're going to be using this blue wire. All we're going to do is take our quick splice, slide it over that. We want to get our wire in this little U-shape of our connector. So we'll slide it over, just like so and I'll take a pair of pliers and compress that down. Just like so and we can grab that spade connector and just insert it right here in the back. Now you just want to plug back in your switch the same way we took it out.As far as getting our pigtail harness installed, that's all good and done. Now we just want to clean it up and then we can make our connections to the battery. Now we're going to locate a good spot to ground our wire. Now right down here would be a pretty good spot, it's out of the way, it's going to be easy to get our self tapping screw in there. All we want to do is pull our wire out and we will cut our wire and toss our extra wire to the side. Now we're going to strip it back. I'm going to strip it back pretty far and then double it over just since we do have a bigger ring terminal.And now grab our ring terminal provided. We're just going to crimp that down. Can now grab our provided self-tapper, just lower down into the position and now we can run our tapper into our fender. Just like that, our wires nice and out of the way. We actually are going to have to run our ground in a different spot. The sheet metal there, where we put it the first time, wasn't really thick enough to hold it solid. So what we're going to do is put it on the brake pedal arm. There's a 12 millimeter nut on the side. You're probably not going to be able to see it with the camera but it's right there on the side of our brake pedal.So we're just going to add a ring terminal, crimp it down and slide our ring terminal over that post on our brake pedal. Now I want to grab our 30 amp circuit breaker. We're going to mount it right here above our other one. And now I want you to run our white power wire over. We're just going to pull that behind our inaudible 00:08:10 here, around like so. We'll measure it off and we'll cut back our wire. Well I had one of our smaller ring terminals, now we can crimp it down, just like that. Now what we want to do is add it to this silver post on our circuit breaker. So we'll remove our nut and we'll just slide this over. Do a re-install on that. I just want to get this hand tight for now.Now we want to grab that extra wire that we cut off with our end stripped back. We're going to add a small ring terminal. We can now crimp it down. Now this is going to go on the copper post of our circuit breaker. Good way to remember it, is copper to battery and then silver is before the circuit breaker or from our harness. We'll slide that on and then add our nut. We can now come back with a 3/8 socket and just tighten down our hardware. Now you don't want to put a ton of torque on this. You just want to get it nice and snug because we don't want to break our circuit breaker. Right there should be perfect. Yeah, same thing for other bolt.Now we just want to route our white wire to the battery. I'm going to zip tie it to some factory wiring down here, just to help keep it out of the way. Now I just want to take our wire and measure it off to the battery. We're going to cut it right about here. I'm going to start back at this end. We can grab one of our ring terminals provided, that's the way you spin that and we'll crimp that down. Now we want to remove the 12 millimeter socket located right there on top of our battery. If you have any other wires on there, you want to make sure to hold on to them so they don't drop. We can add our new terminal and then re-install our nut. Just like that.Now I just want to grab our battery cover. We're going to trim it back a little bit, just so all of our wires fit underneath of it. As far as installing our pigtail harness for our brake controller, we're completely done with that. I do need to go back and zip tie up some wiring but other than that, it is installed. So now we're going to move on to our brake controller and you can follow along with us. Now to get our brake controller installed, you want to grab our bracket and our operating unit. Now this is probably the best location to mount ours. So we're going to take our bracket and slide it over the top and just try to get an idea of where it's going to go.All right there, it's pretty good. So we'll lower down our Tekonsha, hold that in place and then come back with our provided screws and screw it down. I don't want to tighten it down all the way yet because we still want some movability with it. That way, we can get it nice and level. Right there looks pretty good. So we can add our screw to the other side. And we can come back and tighten this one down. Nice and secure. Now we're going to grab our Tekonsha, we're going to line up the holes on the side with a hole in the side of our bracket. We're going to get it as close to the dash as possible, right there looks pretty good. Then we can add our hardware.Now this other side is going to be pretty tight. So we're going to use a low clearance screwdriver to get our hardware installed. Now with both sides tightened down, we can snug up the center. Using a 1/4-inch wrench, it's going to be a little bit easier to get in behind our Tekonsha and tighten down our hardware. And I don't want to over tighten this because we are screwing it into plastic, we're almost there. Come back and check this one, tighten it up a little bit more. Now we're good, it's nice and secure. Now I just want to grab our pigtail and plug it in until you hear it click.Now, we're just going to clean up our wiring, so they aren't hanging down on our feet. Now we have it hooked up to our tester and we can make sure our brakes are working. As you can see, when I'm pushing the brake in the vehicle, it's applying the brakes to our tester box, at which in terms, is our trailer. With our brake controller hooked up and working, we know we're ready to hit the road. That's going to do it for our look at and installation of Tekonsha's replacement brake controller plug on our 2015 Toyota Sienna.


Customer Reviews

Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long - 20127

Average Customer Rating:  4.8 out of 5 stars   (554 Customer Reviews)


- 20127
by:
2007 Ford Ranger

Purchased a Teckonsha Voyager brake controller and the ETBC7 install kit. The instruction an video were very clear and easy to follow. Installed on a 2007 Ford Ranger Sport. Tech support was also very helpful on the one question I did have.


Comments
I have been completely satisfied with this item. It has operated as advertised an has had no problems.
David - 11/08/2020


- 20127
by:

Works as intended, but the plug on the back of the controller is a loose connection. Sometimes I would go to brake and find that I had no trailer brakes because the controller lost power. After a wiggle it would start to work again. I was able to shave the Molex plug a bit and now I don't have any problems with it.


Comments
Thank you for your review. I have not heard of that problem. I would have used some electrical tape.
-- Etrailer Expert Sierra K - 07/19/2021


- 20127
by:

These guys are great they had the installation kit it came with everything you need and even had a video for my specific vehicle to install the brake controller and wire in a 7 pin trailer plug If you don’t have factory brake controller the etbc7 is an amazing kit they have comes with everything I mean everything


Comments
Everything has been excellent e trail has the right products and they fit just like they say
Tim - 06/26/2021


- 20127
by:

The service you receive from etrailer is top notch. This brake controller has worked very well. I actually swap it between two of our vehicles. Just unplug it from one and plug it into the other.


Comments
Very well. The service etrailer provides is the highest Ive ever experienced. They are just super to work with. Ive used them time & time again. I recommend them to everyone looking for anything they carry.
Bill D - 08/15/2021


- 20127
by:

Perfectly wired directly to existing wiring that I had for the previous brake controller I replaced with the, Draw Tite I Command. This will make it a lot easier should I choose to upgrade the unit in the future. Fantastic customer service from Joshua as well.



- 20127
by:

The product is good heavy duty Manufacturing. All parts and pieces were there to professionally install the unit. The young lady that helped me did a great job. The End.... PS now that they have your email address you will be getting dozens of emails from them!


Comments
You can unsubscribe at any time from our emails.
-- Etrailer Expert Jenny N - 10/26/2021


- 20127
by:

If you are starting from scratch to install a brake controller and a 7-Way connector, you would want the Brake Controller 7-and 4-Way Installation Kit (ETBC7). This kit contains all the necessary parts to connect to the 4-Way connector mentioned above, and to wire all the way to the front of the vehicle and connect to the brake controller. I already had a Tekonsha Primus brake controller from another vehicle, so all I needed for that was the Brake Control Plug-in Harness (#20127).



- 20127
by:

My truck was stolen and wrecked. I was able to retrieve the Tekonsha Brake controller from under the Dash board before it was hauled to the salvage yard, but not the wire harness. I was ale to order a replacement harness from eTrailer and reinstall the controller in my new truck. I had no problems at all. Thank you eTrailer for the great support.



- 20127
by:

The drawtite hitch and trailer wiring harness fit great. Instructions were clear and concise. Installation was a breeze. I am ready to tow my little trailer now. As soon as I get the brake controller installed, I will be ready for my big trailer.



- 20127
by:

Easy install with clear instructions, I would have like to have seen more info about the wiring for the factory tow package vehicle showing where to hook it up under the hood of the truck



- 20127
by:

The sales person was the best. Answered all my questions with knowledge of the products and recorded fo order quickly. Order shipped quickly and was received within two days! Thanks Ray



- 20127
by:

If your truck comes with the tow haul package.... this item is literally plug and play. I had it wired up and all mounted inside of thirty minutes. It's literally 4 wires and the stock system wires are labeled along with the brake contoller. I haven't tested it yet but so far I am thoroughly impressed!



- 20127
by:
1997 Ford Aerostar

etrailer has been great. Always has what I'am looking for plus good and friendly service.



- 20127
by:

Needed for my installation. etrailer staff was very helpful in helping me order all the pieces that I needed.



- 20127
by:

Good product and easy to install. Had some questions and they were answered very quickly and concise.



- 20127
by:

Makes hooking up brake controller when your vehicle has a tow package already installed a breeze.....



- 20127
by:

Very pleased with all of the products so far. The shipping info and updates had a little to be desired on my last order but all in all this is where I will look first for trailer/ trailer related parts



- 20127
by:
Ford F-250 Super Duty

I purchased this plug to wire into my 1972 F-250 so the brake controller could just be plugged in



- 20127
by:

Arrived on time, excellent install instructions on the website. Easy to install.



- 20127
by:

Package arrived on time. Every thing fit perfectly and I am very pleased. An online video of step by step installation helped me immensely


Comments
Great
Charles - 07/06/2021


- 20127
by:

Easy installation and setup, works flaw lessly



- 20127
by:

It plugs in to the controller, and stays therez also it’s labeled for easy splicing to whatever you need to splice it to. Can’t ask for more than that.



- 20127
by:

The controller was easy to install, and operation was very straight forward, but again what is easy for one can be difficult for others.



- 20127
by:
2009 Toyota Tacoma

No problems installing it in my 2009 Tacoma 2WD 4cyl pickup. Works great. Thanks so much



- 20127
by:

Just what I expected


31
566
Show More Reviews

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  • Brake Controller Harness for Tekonsha P3 on 2021 BMW X5
    Tekonsha # 20127 works with the P3 # 90195 but there is not currently a plug and play option on your 2021 BMW X5. Installing a brake controller is straight forward and can be done at home. If you don't already have a trailer connector, to install the brake controller you need a 4-way wiring harness converted to a 7-way. Part # 119190KIT allows you to use a 4-way. # ETBC7 which is a universal 7-way. This is the easiest way to do it because the kit includes everything you need to get the...
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  • Installing a Brake Controller on 2013 Mazda CX-5 with 7-Way Installed
    Since you have a 7-Way you will only need a few more components to complete a brake controller install on your vehicle. For a wiring kit to install the brake controller and the 7-way adapter you would want the Wiring Kit for 2 and 4 Brake Electric Brake Controllers # 5506. This will provide the power source and ground for the wiring for the brake controller. You will need to test the wires from the brake pedal switch of your vehicle to find a circuit that has voltage when the brakes...
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  • Stop Light Switch Location On A 2015 Jeep Cherokee
    The stop light switch that you will need to connect the red wire to on the Brake Control Plug-In Harness for Tekonsha part # 20127 may be pre ran to a set of wires taped to the underside of the drivers side vehicle dash. If the wires are not present in this location, I recommend installing a stop light switch such as the Roadmaster Stop Light Switch Kit part # RM-751471 to wire the brake controller stop light switch to because of the difficulty and risk of error that is involved when splicing...
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  • Trailer Brakes Only Working With Manual Override on 2011 GMC Sierra
    If your trailer brakes are only working when you apply the manual override the issue is commonly the red wire - the stop light switch. Make sure it is connected to the circuit that that only sees voltage when the brakes are applied. The issue with not displaying numbers does make me think that the brake controller may have hit the fritz and need to be replaced though, and this would be true if the numbers never display, even when using the manual override. For your 2011 GMC Sierra a...
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  • Recommended Wiring Harness for 2018 Buick Enclave and Tekonsha Brake Controller
    For your Tekonsha Brake Controller, the custom wiring harness # 3026-P is not a confirmed fit for your 2018 model as it was for your 2011 model. At this time we don't have a confirmed fit from any of our manufacturers. It appears that Buick has changed their connector and the only fit at this time is hardwiring the brake controller. For that, you can use the Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long # 20127. I've attached a wiring...
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  • Can Wiring Harness from Tekonsha Voyager be Used with Prodigy P3 Brake Controller on 2007 GMC Sierra
    If you are using the pigtail wiring harness # 20127 to connect the Tekonsha Voyager Brake Controller # 39510 to the wiring in your 2007 GMC Sierra New Body, you can use this same harness to connect the Tekonsha Prodigy P3 # 90195. The harness is compatible with both brake controllers. You will be able to simply unplug the Voyager from the harness and replace it with the P3. You will not need to reconnect any of the bare wire connections that you already made with your vehicle wiring. The...
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  • Determining If My 2003 Ford F150 Is Already Wired for A Brake Controller
    The connector behind the tray in the dash is for connecting the afermarket brake controller. All you should need to do is obtain the Wiring Adapter and a brake controller. One end of the adapter would wire to the brake controller, the other end would plug into the connector that you have already located. We offer a large selection of brake controllers. I would recommend a proportional controller, such as the Tekonsha Prodigy P2, part number 90885. The Prodigy is very easy to use...
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