Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional
Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long

Part Numbers: 5535,20127


Our Price: $64.45

You Save: 40%

This item qualifies for Free Shipping

In Stock
5535 - Up to 4 Axles Draw-Tite Brake Controller
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

In Use/Installed

Customer Photos

Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional
part number: 5535

Brake controller activates trailer brakes in proportion to deceleration. LED screen shows settings and diagnostics. Features 3 boost levels. Automatically levels when mounted within 90-degrees in the vertical plane.


  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
    • Activates immediately - no pausing like with time-delayed brake controllers
  • Automatically levels - internal sensor detects deceleration even if controller is not mounted level
  • Boost setting lets you adjust the aggressiveness with which the brakes are activated
    • Get full power output faster by pressing the plus button to increase activation speed
    • Achieve smoother braking by pressing the minus button to supply power gradually
  • Easy-to-read LED display shows controller activity
  • Short circuit protected
  • Built-in, slide-bar manual override
  • Quick and easy installation
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake-control adapter (sold separately) can be used for certain applications to reduce installation time


  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric brakes only
  • Mounting angle: between -20 degrees and 70 degrees in the vertical plane
  • Limited lifetime warranty

Proportional Braking

With a proportional brake controller, you can get heavy-duty emergency braking, general braking, or slow-to-an-idle braking for your trailer automatically. The intensity with which your trailer brakes are activated and the rate at which they are applied are dependent on the deceleration of your tow vehicle. This means that, unlike time-delay controllers - which send the same amount of preset power to your trailer brakes every time - proportional controllers are able to adapt to every braking situation differently.

So, if you slam on the brakes in your truck, your trailer brakes will activate with that same extreme intensity. And if you merely slow down as you approach a red light, your trailer will gradually brake in the same manner.

As long as the I-Command is properly mounted according to the included instructions, the controller will automatically level, sense the tow vehicle's deceleration, and adjust the trailer's braking accordingly. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.

Power Boost for Heavy-Duty Towing

The I-Command offers a boost feature that gives you more initial braking power for times when you're towing heavy loads. You can switch boost levels so that the power output to your trailer brakes automatically starts out at either 14 percent or 28 percent of the predetermined power setting.

So, if you boost the initial power so that your trailer brakes activate with 25 percent of the overall intensity at the start, the brakes will reach maximum braking faster. This is particularly beneficial if you are towing a heavy load because the intensity required to stop that load may be far greater than that needed to halt your vehicle. Therefore, sending out more initial power to the trailer brakes - and causing them to reach maximum braking faster - allows you to better control the trailer so that it doesn't push your tow vehicle before coming to a complete stop.

If your trailer weighs less than your tow vehicle, no boost is needed. But if you wish to set the boost so that your trailer leads the braking of your towing setup, you can select level B1. The following table gives an indication of when you might use the different boost levels and the power increases that they offer.

Approximate Gross Trailer WeightBoost LevelIncrease in Initial Power Output
Less than tow vehicle GVWB114%
Equal to tow vehicle GVWB1 or B214% or 28%
Up to 25% more than tow vehicle GVWB1, B2, or B3* 28%
Up to 40% more than tow vehicle GVWB2 or B3* 28%

* Both B2 and B3 offer a 25-percent boost in initial power. But the braking curve for B3 is more aggressive than that of B2. This means that, even though you will start out with the same intensity when using these boost levels, you will get an overall more aggressive braking experience with the higher level. So if you use B3, you will reach maximum braking sooner than if you use B2.

Safety Features

The I-Command offers advanced safety features to prevent damage to various components of your towing setup. Integrated reverse battery protection shields the brake controller and your trailer's breakaway system from shorts.

If ever there is a time that you need to brake your trailer separately from your tow vehicle - when traveling down a steep incline, for example - the manual override lever is easily accessible. Pushing this lever engages the brakes on your trailer with full power.

LED Display

The I-Command has a digital LED display to keep you informed of your trailer's braking. The display shows the gain setting when the control is activated. It can also be used to check for connectivity with your trailer, to determine your boost setting, and to troubleshoot.

Automatic Leveling and Simple Installation

Because this controller operates with an internal inertia sensor, it must be mounted between -20 degrees and 70 degrees in the vertical plane. The I-Command must be mounted on a level horizontal (side-to-side) plane and must be lined up with the direction of travel for the internal sensor to function properly.

The automatic leveling feature of the I-Command ensures that the brake controller continues to function even as you drive up steep hills or through the mountains. Mount the controller at a vertical angle that is between 0 degrees (level) and 70 degrees, and the controller with level itself automatically.

Installation of the I-Command requires that you either purchase a custom wiring adapter designed to plug into the controller or that you hardwire the controller directly into your vehicle. To hardwire the controller, you must remove the plug at the end of the integrated wiring harness.

Installation Accessories

For easier installation, a vehicle-specific wiring adapter (sold separately) is available for most newer trucks and SUVs. One end of the custom adapter plugs into your vehicle, and the other end plugs into the controller - no hardwiring required.

For even easier installation, a vehicle-specific wiring adapter is available for most newer trucks and SUVs. One end of the custom adapter plugs into your vehicle, and the other end plugs into the controller - no hardwiring required.

Note: If a custom brake-control wiring adapter is not available for your vehicle, one of the following will be required:

20-Amp circuit breaker (9506P - sold separately) for 2- to 4-brake applications

30-Amp circuit breaker (38630 - sold separately) for 6- to 8-brake applications

See also etrailer.com's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.

5535 Draw-Tite iCommand Proportional Trailer Brake Control

California residents: click here

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

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 Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional

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

Video Transcript for Draw-Tite Brake Controller - Proportional Controller - 5535 Review

Today we're going to be taking a look at the Draw-Tite I-Command Proportional Trailer Brake Controller. This controller is going to activate the trailer brakes in proportion to your vehicle's braking action, it's going to automatically adjust the trailer's braking based on deceleration of the towed vehicle, and it activates immediately, so there's no pausing like when using time-delayed brake controllers. This unit's also going to automatically level. The brake control will automatically acquire the proper level setting, it's also going to automatically adjust as you travel up or down hills. A few unique features about this system. As you can see here, we have the easy to access buttons, we're going to have the boost setting right here on top and it says 'Boost' right here on the disc plate, so that way we know these button go with that setting. On this side we're going to have the gain control, and it says 'Gain' right there so we know that these buttons are associated with that control.

The boost setting is going to let you adjust the aggressiveness with which the brakes are activated, so this is setting is great in situations where you're hauling heavier loads or your trailer weight is significantly more than your vehicle weight. It's going to be available in three settings, you're going to have Boost 1, Boost 2, and Boost 3. It's going to allow you to get full power output faster by pressing the plus buttons right here, or the minus buttons to achieve maybe a smoother braking action. You can get full output power faster by pressing the plus button to increase the activation speed, and then you can achieve smoother braking by pressing the minus button to supply power gradually. Located right here at the front is going to be the easy to read digital display. This is going to be an LED display, it's going to show the controller activity.

The unit is short-circuit protected. On this side you're going to have the gain setting, this is going to establish the maximum amount of power available to the trailer brakes. As the gain increases, and you just the plus or minus buttons to do that, so it's very easy to adjust, but as that increases what that means is more power is going to be available to the brakes when the brake peddle in the vehicle is pressed or when the manual control is used. We do have the built in slide bar manual override right here at the front, very easily accessible. Gain is going to be shown from zero to ten, with zero being the minimum and ten being the maximum. That simply represents a percentage of the full power.

It's a quick and easy installation, your mounting bracket and hardware are included, and then it's going to be able to plug into a vehicle specific brake control adapter. Those are sold separately and can be used for certain applications to help reduce installation time. Again, this is designed for trailers with up to four axles or A-brake assemblies. It's designed for use with electric brakes only. When mounting this, you can mount this anywhere from -20 degrees nose down, anywhere to 70 degrees nose up in the vertical plane.

You want to make sure this is parallel with the direction of travel, but anywhere in between those indicators that I gave you, -20 degrees nose down or 70 degrees nose up, this is still going to be fully functional. All the leveling, the sensor inside, that's going to be functional as long as you stay within those increments, or those measurements of negative 20, 70 degrees nose up. Really nice design, it's a nice small compact unit as well. Here at the widest part it's only going to measure about 2-3/4" wide, and then the overall length is going to be about 4-1/4", and then the depth or the thickness is only 1-1/8". It's going to be covered with a unlimited lifetime warranty. Now what I want to do is I just want to show you how easily that display can be read. I'm just going to hook up a couple of wires here today just to send some power to it, I'm going to hook up a ground power then the power wire, and then we thumb through some of the settings and you can get an idea for how easy it is to read and how easy it is to see that display. NC is going to stand for Not Connected, but it's still going to allow us to kind of go through. We have our gain setting, you can see how that easily adjusts with a simple press of the button, and again you can go all the way up to ten, you can hold it down, which is going to allow you to adjust quicker, all the way up to ten. Then you can press individual to make finer adjustments, or you can hold it down and it's going to go all the way down to zero. You can adjust to anywhere in between that setting, really nice design. You're also going to have the manual override right here, which for me it's just saying I'm not connected, which is correct since I'm just feeding off a power box. Then you're going to have your boost setting. You're going to have Boost 1, Boost 2, Boost 3, then just the B shows you that you're in the boost settings, then you have 1, 2 and 3 to choose from. That's going to do it for today's look at the Draw Tite I-Command Proportional Trailer Brake Controller.

Customer Reviews

Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional - 5535

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   (592 Customer Reviews)

Brake controller activates trailer brakes in proportion to deceleration. LED screen shows settings and diagnostics. Features 3 boost levels. Automatically levels when mounted within 90-degrees in the vertical plane.

- 5535
by: James10/05/2018

Great product & fast shipping. worked great on my 2017 Silverado LT description & instructional video made it easy to purchase. 572032


I pull my 30 travel trailer weighing around 7k with dual axles and will stop with no problem.

James - 10/06/2019


- 20127
by: Tom Q05/06/2019

This harness and the Draw-Tite Activator Brake Controller worked fine. I would recommend. 639018

- 5535
by: Martin11/15/2018

17 Toyota Tacoma 583032

- 5535
by: Dave04/28/2018

I put this controller in my Chevy truck and even though it is the cheapest one you can find, it works great. A few days later, the "top rated" one in my Suburban quit working, so now I have two of these controllers. They are adjustable for each of my trailers. You could spend six times as much for other controllers but I can't see that you get a better product than this one. 501979


A year later I still love both of these. I pulled heavy trailers over the Rockies this year without a second thought. With the same controller, I pull my flatbed empty and dont worry about the tires smoking. 5 stars.

Dave - 04/28/2019


- 5535
by: Chris S06/04/2017

I tried finding the controller I wanted locally which ended up costing more time and money Then it should have. One of the places I stopped at was getting info from etrailer web page then adding his ridiculous mark up. When I got back to my office I ordered it from etrailer myself and bought exactly what I was trying to find locally but for much less money even with two day shipping. Beyond all that etrailer is the easiest place to shop and their tracking of my shipment couldn't have been any easier. From here on out if etrailer has what I'm looking for life will be just that much better. Thanks etrailer. 388783


All still as good as it was one year ago. Thank you

Chris S - 06/07/2018


- 5535
by: Matthew09/27/2018

Easy install, quick delivery 569393

- 5535
by: Joe10/08/2018

works great so far. 572738

- 20127
by: David08/31/2019

I did not get any instructions on how to use this device. 696357


We do not have any instructions for this item either, but I do a help article that explains the details of how to install this item. This is a hard wire application for Draw-Tite or Tekonsha branded brake controllers, this is where the black plug end will install. The loose wires will then be connected to the corresponding functions on the vehicle: Blue: trailer brakes White: vehicle battery negative terminal Black: vehicle battery positive terminal Red: cold side of stoplight switch

-- Rachael H - 09/06/2019


- 5535
by: Cody10/28/2016

Great product with very easy install and even better customer service, placed an order late one afternoon and chose the wrong shipping for time I needed it by, gave them a call and they had no problem at all changing it for me and I received the product early the next morning as needed. Great service! 311643

- 5535
by: Jake O06/10/2017

Comments: A) It was a challenge to find the correct wiring for the red control wire for my 3rd generation Toyota 4Runner (1996). It would sure be nice to have a pigtail adapter that worked with that model, but I understand there would be a million different types of pigtails. I have suggestions for anyone else in this predicament with a 4Runner. B) The wiring diagram for the Draw-tite I-command Brake Control suggests this is always active -- directly wired to battery. Instead of plugging unplugging the pigtail, a rocker switch would be good. What is the idle current (amperage) draw (drain on battery)? How about current draw while actively braking? This would specify the type of rocker C) There is little description of the "gain" setting (vs the "boost"). How is this value dialed in for a particular load and boost setting? switch. 391425


So far very well. The boost needs to be changed for highway vs city driving B1 vs B. Perhaps this is a function of the Casita brakes, but brakes grab & lock up if I dont reduce the boost in city driving.

Jake O - 06/12/2018


- 5535
by: Rodney04/21/2018

When I get a chance to try it I'll know for sure. Took a little time to install but the install came out clean. 499119

- 5535
by: Alan T.08/20/2018

The product was exactly as described. Very easy to install. Mine sits at a pretty good angle and works perfectly. So far I have used it on a 28' camper trailer & a 26' camper trailer. 555694

- 5535
by: Randall M.04/24/2017

Ordered this for my 2008 Toyota Tundra to be able to pull a 25 foot travel trailer. This has been the easiest install. It takes literally 5-10 minutes to locate your quick connects and attach it to the dash. I mounted it as close to the middle console to help keep it away from my knee and legs. I used a black magic marker to blend the screws into the black frame. Once connected it automatically does everything else for you. I would recommend strongly on purchasing this trailer brake connector/quick connect along with using this etrailer. The shipping was extremely fast and communication was great prior to its arrival. I watched a YouTube video on my truck to make it even easier to install. 371551

- 5535
by: BILL09/11/2016


- 5535
by: Gary D.10/16/2017

Had no trouble finding what I was looking for. The items I ordered arrived quickly and were easy to install.l was unable to find the wiring harness l needed locally. 443247


Works great.Have no trouble towing our camper on hilly curvy roads.

Gary D - 10/19/2018


- 5535
by: Jerry Fairchild09/17/2016

Seems to be a wonderful product installed it in my 99 Dodge in about 15 minutes plug it in went down the road and back brakes worked great simple and easy Ali together done in about 20 minutes back home sitting in back yard having a cold beer don't get much better than that 295754

- 5535
by: Christopher Lee Wirth07/21/2016

install was easy and straight foward, located a video on this website that assisted me in locating the factory wire harness to install this piece of equip 274705

- 5535
by: Larry p01/24/2017

Very good description of product and what I needed to order. Every thing arrived on time and the price was very reasonable. The brake controller does everything it was advertised to do. Great product , great service by e.trailer thanks 335128

- 5535
by: Mary Ruth11/22/2017

I installed this in my Jeep Grand Cherokee for pulling a travel trailer. We pulled the trailer from the Denver area all the way to the California coast. For anyone who has driven across 80, you know what challenges face a camper making that journey. No wonder pioneers left family heirlooms along the trail in the old days! This break controller made the trip possible for me. It worked well, and the trailer never ran the Jeep over. I remember engaging the trailer breaks quite a bit on the hill going into Salt Lake City. Worked like a charm! 454219

- 20127
by: Rob Rod05/13/2014

Exactly what I needed! 130328



Rob R - 05/13/2015


- 20127
by: Gilbert S05/31/2018
1984 Ford F-150, F-250, F-350

The right adapter for the brake control unit. Made it simpler to install. 514342

- 5535
by: Sinh11/12/2017

Fast shipping, easy install, work good, recommended. With 2007 Lexus GX470 doesn't have any where to mount the controller so I put it on a middle near shifting handle. 451302

- 5535
by: Joe T.06/24/2016

Product works and works well. Wiring harness plugged in perfectly. Little Nissan Frontier tows a heavy dump trailer and stops with ease. 264570

- 5535
by: Paul10/06/2018

Everything I’ve ordered has been great. 572110

- 5535
by: Allen R.02/23/2017

This has been the best and easiest purchase during my short journey of outfitting my 2008 Nissan Titan SE to haul a 27 ft camper. This has been the easiest install. If you're not mechanically inclined like myself no worries at all. It takes literally 5-10 mins to locate your quick connects and attach it to the dash. Once connected it automatically does everything else for you. You receive a set of directions just make sure you read them first and save yourself some money and do the install yourself. Once the camper was connected to the truck it was automatically detected. Can't get any easier than just connect and go. I would recommend strongly on purchasing this trailer brake connector/quick connect along with using this company. The shipping was extremely fast and communication was great prior to its arrival. 344916

- 5535
by: John D.01/22/2017

Received the product quickly and was exactly as described. Installed the controller and the plug in wiring worked perfectly, made some basic adjustments that were in the instructions to start. Picked up my trailer and loaded up a International farm tractor on the trailer and brake controller worked just the way I needed it to. Thanks etrailer 334416

- 5535
by: Brian C.10/04/2016

I only gave 4 stars because I have yet to use the trailer brake controller. Shipping and customer service from eTrailer was top notch. Quick delivery and continuous updates. Brake controller is much smaller in size than I imagined. Installation was a snap, however the instructions had wiring color configurations incorrect for my vehicle. Easy fix, thanks YouTube. All in all, I cannot wait to order again from eTrailer. 303320

- 5535
by: Glenn C09/05/2017

Purchased this as I needed it for towing our newly acquired 26 ft. camper. With the addition of the installation adapter that matched my truck, the installation was simple. The set-up was easy and the product works flawlessly. I don't think I could have asked for more given the very affordable price. 429007


This product has worked great and the installation along with the pigtail adapter took less than 15 minutes. I have towed my trailer hundreds of miles without ever a worry about braking. Great product.

Glenn C - 09/12/2018


- 5535
by: Josh01/24/2018

Wish I had bought this one years ago. After buying one,I replaced the brake controllers in all the rest of our trucks over from the time delay to proportional style. Pulling different trailers both empty and loaded this controller is very easy to get the settings right, something I can’t say for any of the timed delay controllers I’ve used. It’s worth every penny. 469070

- 5535
by: Svend11/26/2017

Very easy install on my Dodge Ram 2500 . Works great and easy to adjust 454881

- 5535
by: Rick09/15/2018

Got some straps to secure our quad to trailer and a brake controller. All products came on time and worked perfectly. At first I thought the 4 Bulldog straps were way to beefy and overkill, but having used them this past weekend I have changed my mind....I felt very confident driving knowing there was no way our toy was going to come loose! And the absolute best feature is the little safety latch that prevents hook from possibly falling off trailer hook if strap were to come loose. Folks I talked to were very knowledgeable and helpful. I will definitely visit the etrailer site next time I need something. 565493

- 20127
by: Dean E.10/08/2017
2005 Mercedes-Benz M-Class

This was automatically added when I ordered the instal kit for my brakes! Great addition but just add it to the install kit to begin with! 440649


Works great! I have a small SVU & small TT.

Dean E - 10/08/2018


- 5535
by: Mike C12/01/2019

In speaking with the staff at Etrailer they know their products and their application. They helped me find the exact unit I needed. 728713

- 5535
by: Tim11/30/2019

Product as advertised - easily installed and functions easily understood. More affordable than others with solid quality 728451

- 5535
by: John11/19/2019

The control was simple to install and to program, allowing me to tow my trailer within minutes of installation. 726575

- 20127
by: Mike11/13/2019

i have purchased close to 50 hitches and harnesses from you folks all good 725406

- 20127
by: David11/05/2019
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. 722791

- 20127
by: Vincent11/01/2019

Worked well provided enough length to hook up brake controller 721968

- 20127
by: Douglas11/01/2019

Great customer service, helped on making sure I got what I needed. Parts came on time and they fit the application 721735

- 5535
by: Thomas10/31/2019

Arrived on the date promised and looks great out of the package but I haven't installed it yet, thus the 4 stars. 721476

- 5535
by: Dwight C10/31/2019

This controller replaced an old DrawTite controller that seemed to be spotty in it's performance. This new one is smaller, easier to install, and provides GREAT ADJUSTMENT and PERFECT PERFORMANCE. 721454

- 20127
by: Gordon10/27/2019

I’ll start to put it in this week. Ashley was a great help,she should get an “ At a girl” forsure. Ty all,it been a pleasure doing business with you! 720593

- 20127
by: Dan10/25/2019

Came sooner than expected Every thing ordered was new in original packing Super Webb site Thanks “I’ll be back” 720415

- 5535
by: Anthony10/19/2019

My break controller was shipped fast and was easy to install (less than 5 minutes). I haven't used it yet but will try it out in the next few weeks. 718872

- 20127
by: Walter10/19/2019
2012 Chevrolet Silverado

Easy installation, worked as it is meant too 718756

- 20127
by: Jason10/18/2019

So far so good. Easy install 718565

- 5535
by: Steven10/08/2019

Just installed and works great pulling my Tailgator with my RAM 1500 715050

- 5535
by: Works as it should10/05/2019

I use this in my 2015 Tacoma for hauling my converted cargo trailer. I like the adjustability. 713929

- 20127
by: Markus10/01/2019

It fits the controller. 711436

- 5535
by: Chad P.09/21/2019

It's been a year and I have had no problems with this Brake controller. I just hooked up the trailer last night and everything work perfect. 706190

Show More Reviews

Ask the Experts about this Brake Controller
Do you have a question about this Brake Controller?

  • Install Harness Recommendation for Draw Tite Brake Controller in 2016 Toyota Tacoma
  • To install the Draw Tite brake controller part # 5535 in your 2016 Toyota Tacoma you will need the part # 3031-P which will plug into the port under the dash of your truck like you mentioned.
    view full answer...

  • How to Add Draw-Tite I-Command Trailer Brake Controller to 2013 Subaru Outback
  • The 2013 Subaru Outback does not have factory trailer wiring, which means there isn't a strictly plug-and-play brake controller for this vehicle, so you'll need to add the wiring to your Outback to use a brake controller. You'll need to start with a 4-way, the T-One Vehicle Wiring Harness # 118467 followed by the Universal Installation Kit for Trailer Brake Controller # ETBC7, which will give you a 7-way connector, circuit breakers and the rest of the hardware needed to install a brake
    view full answer...

  • Inexpensive Brake Controller For 1998 Jeep Grand Cherokee Laredo 4.0L
  • The Draw-Tite I-Command Trailer Brake Controller # 5535 is a great proportional brake controller to fit any budget. With a proportional brake controller, you can get heavy-duty emergency braking, general braking, or slow-to-an-idle braking for your trailer automatically. The intensity with which your trailer brakes are activated and the rate at which they are applied are dependent on the deceleration of your tow vehicle. The Brake Control Plug-In Harness that works with your Draw-Tite Brake
    view full answer...

  • What are the Dimensions of the Draw-Tite I-Command Brake Controller
  • I went out to the warehouse to measure Draw-Tite brake controller # 5535 for you. The overall dimensions not counting the wires at the back are: 4.25 inches front to back, 2.81 inches wide, and 1.18 inches tall. In addition to the brake controller you will also need # 3031-P to plug it into your 2018 Toyota Tacoma.
    view full answer...

  • Installing Draw-Tite I-Command Brake Controller on 2012 GMC Sierra
  • To install the Draw-Tite I-Command Trailer Brake Controller # 5535 on your 2012 GMC Sierra, you will just need to add the Pigtail Harness # 20127. If your Sierra is equipped with a fully-functional 7-Way connector, there is not a plug-in-play style port present under the dash, but all the needed wires are already run. What this means is that the installation will not quite be a plug-and-play process, but all you will need to do is connect the brake controller wiring to the vehicle wiring
    view full answer...

  • Can a Brake Controller be Installed on a 2014 Subaru Crosstrek
  • Yes, you can install brake controller # 5535 in your 2014 Subaru Crosstrek. If your Crosstrek does not already have a 4-Way trailer wiring harness you would need to start by installing one, # 118467 for non-hybrid models or # C56243 if yours is a hybrid. Then you will need # ETBC7 to add a 7-Way trailer connector and for the wiring and other parts needed to install brake controller # 5535. I have included some links that show and explain the ETBC7 installation for you.
    view full answer...

  • 4-Way and 7-Way Wiring Recommendation for 2005 Dodge Dakota without Trailer Wiring
  • You will need to start with a 4-way installed on your 2005 Dodge Dakota. For that you would want the # 118323 which is a plug and play, easy to install wiring kit. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. This also gives option for a 4-way as well. I attached installation instructions and an install video for this product as well. For
    view full answer...

  • Should Draw Tite Electric Brake Controller Have Anything on Display When not in Use
  • There should be a decimal on the Draw Tite I-Command's # 5535 display whenever the controller is receiving power but there is no trailer connected and no boost is set. If you connect a trailer you should see .c instead. I've attached an example of some displays from the controllers installation details.
    view full answer...

  • Trailer Brake Controller Wiring Installation in Chevy Avalanche
  • To install the Draw-Tite I-Command Trailer Brake Controller # 5535 in your Chevy Avalanche that has a factory-installed 7-way trailer connector you will use existing OEM wiring that is under the dash to hard wire it. There is no quick-connect brake controller port in your model year Avalanche; there was one included up to model year 2006 and this used part # 3015-P. You can use wiring pigtail # 20127 to give you the wires needed for connection. On the controller pigtail the wire colors/functions
    view full answer...

  • Recommended Brake Controller And Wiring For 2005 Subaru Outback Wagon
  • The Draw-Tite I-Command Trailer Brake Controller, part # 5535 is designed for electric only brakes. It will not work with electric over hydraulic brakes. We do offer brake controllers like part # 90885 that can be used with both brake systems. When wiring the brake controller, the red wire needs to be attached to a wire that only has power when the brake pedal is pressed. Typically this is the cold side of the brake light switch, found under the dash at the top of the brake pedal.
    view full answer...

  • Two Red Dots Showing on Draw-Tite I-Command Trailer Brake Controller
  • Two dots will be displayed on the Draw-Tite I-Command Trailer Brake Controller # 5535 whenever a trailer is not connected. After 15 minutes of no motion the controller goes into power-saving mode and the display will be completely blank. So you will not need to worry about the controller draining your battery.
    view full answer...

  • Parts Needed to Install a Brake Controller in a 2001 Ford Sport Trac with 7-Way or 4-Way
  • There isn't a brake controller wiring harness for the 2001 Ford Explorer Sport Trac. A brake controller will need to be hardwired in. If the vehicle already has a 7-Way trailer connector then all you will need is # 5506. But if it has a 4-Way flat connector only then you will need # ETBC7. I have included some links that show and explain the hardwire installations.
    view full answer...

  • What Brake Controller Harness Fits 2015 Toyota Tundra 1794 Edition?
  • I checked with Tekonsha and the correct harness for the Draw-Tite I-Command # 5535 is the Tekonsha Custom Wiring Adapter # 3031-P. This adapter is a confirmed fit for all models of 2015 Toyota Tundra, including the 1794 edition. I've added links to video reviews of both the I-Command and adapter for you to take a look at.
    view full answer...

  • How To Install A Brake Controller On A 2014 Volkswagen Toureg
  • I have the video I think you are talking about linked here on a 2016 Volkswagen Touareg. The video link does show a Tekonsha Prodigy brake controller part # 90885 instead of the Draw-Tite I-Command part # 5535 but it is the same installation. The Touareg does require a pigtail from the Volkswagen dealership to install a brake controller. The driver side left lower panel does need to be removed. Once you get the panel removed there will be a black plug with the wires attached to connect
    view full answer...

  • Wiring Harness to Plug In Draw-Tite Brake Controller to a 2014 Nissan Frontier
  • To plug the Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional Item # 5535 into your f2014 Nissan Frontier you will just need Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Nissan and Infiniti Item # 3050-P.
    view full answer...

  • Installing the Draw-Tite I-Command Trailer Brake Controller # 5535 on a 2017 Chevy Express Van
  • The Draw-Tite I-Command Trailer Brake Controller # 5535 is wired as follows: Blue - 7-Way Output to Trailer Black - 12V Power White - Ground Red - COLD Side of Stop Light Switch (only gets hot when brake pedal is pressed) Some models of the 2017 Chevrolet Express Van require the Wiring Kit # 5506 to and/or part # 30955 for a complete installation but it is just a hit and miss as to what is already done. You can simply use a circuit tester like part # 40376 to verify if all the
    view full answer...

  • Wiring Adapter Needed to Install Draw-Tite I-Command Brake Controller 5535 in 2017 Ford Explorer
  • In your 2017 Ford Explorer XLT with the factory tow package installation of a Draw-Tite or Tekonsha brake controller like the I-Command # 5535 or the Prodigy # 90885 will require wiring adapter part # 3035-P. This will plug in between the controller and the under-dash connection port. Part # 3016 allows controller installation in compatible GM vehicles.
    view full answer...

  • Wire Gauge and Circuit Breaker Required for Brake Controller Isntallation
  • The Draw-Tite I-Command Trailer Brake Controller # 5535 includes a hardwired connector that is intended to connect to a vehicle-specific harness on vehicles that have a direct connection port or to a pigtail # 7894 to allow a hardwired installation in a vehicle that does not have such a connection point under the dash. This pigtail harness is 34-inches long, long enough for most installations. The black and blue wires on this part are 10-gauge and the others are 12-gauge; butt connectors
    view full answer...

  • Does Draw-Tite I-Command Need Power to be Manually Adjusted
  • The power to your trailer brakes does need to be manually adjusted with the Draw-Tite I-Command Trailer Brake Controller # 5535. The linked instructions show exactly what you need to do to adjust the power, which is as follows: 1. Connect trailer to tow vehicle. 2. With engine running hold manual full left and set Output/Gain to indicate approximately 5.0. 3. Drive tow vehicle and trailer on a dry level paved surface at 25 mph and fully apply manual control. - If trailer brakes
    view full answer...

  • Finalizing Final Under Hood Wiring Connections for Brake Controller on 2009 GMC Sierra
  • It sounds as if the final power connection needs to be made under the hood. If you take a look at the Brake Controller Installation FAQ article I have linked you to, and scroll to the bottom of the page, you can see the procedure for finalizing the connections under the hood. The wire that provides power to the brake controller is located to the right of the power distribution box, between the box and the fender. Cut the electrical tape and free the red wire with the ring terminal on
    view full answer...

  • Where to Connect the Stoplight Wire on Brake Controller Pigtail
  • To install the Tekonsha PowerTrac Brake Controller # 39523 in your 2006 Ford Escape, the red wire on your brake controller harness # 20127 needs to be connected to the stoplight switch under the dash in your vehicle. There should be a wire for the stoplight switch on the back of the brake pedal. You will want to use a circuit tester, like # 40376, to find the wire that has signal only when the brake pedal is depressed. Testing the wires is the best way to be sure which wire is the one
    view full answer...

  • Does the Tow Package Wiring on a 2008 Chevy Colorado Match a Brake Controller Color for Color
  • On the 2008 Chevy Colorado with a factory tow package, the wiring for a brake controller is located under the dash, to the left of the brake pedal. The wire bundle should have a white tag on it that also lists the functions of each wire. You will need to match the wires to the brake controller by function, not by color. On the brake controller, white is ground, black is 12 volt power, blue goes out to the trailer connector, and red is in from the stop light circuit on the brake switch. It
    view full answer...

  • Installing a Trailer Brake Controller on a 2012 Dodge Caravan with Tow Package
  • I spoke with a colleague who worked at Chrysler and he stated that they do not put the trailer hitch and 7-Way wiring on the Grand Caravan at the factory. That is something that the dealer installs. In any event here is what you will need to do. The brake controller will need to be hardwired into the vehicle. The white wire on the brake controller will need to get connected directly to the negative terminal on the vehicle battery. The black wire will need to connect to a 30 amp circuit
    view full answer...

  • Troubleshooting Prodigy Trailer Brake Controller Causing Dash Light Errors
  • Sounds like it could be the way your brake controller was installed. I would first check the connection of the red wire, this should be connected to the brake light switch wire that is only active (hot) when the brakes are pressed. Since you have a 2008 this newer body style has been known to need to be hardwired when installing the brake controller to function properly. I have linked a step by step Help Article for you to look at. I would also recommend to clean out any corrosion
    view full answer...

  • What Do I Need to Wire a Basic 4-Way Trailer Connector on a 1996 Toyota Tacoma Pickup
  • Since the 1996 Toyota Tacoma has separate turn and brake signals, a converter is necessary. Fortunately, there is a plug-and-play harness, part # 118379, available for your Tacoma that makes installing very easy. It simply plugs in-line with the tail light connectors behind the tail light housings. Then you connect the ground wire to a good ground point on the truck frame and you are done. I have added a link to the part and a video of it being installed on a 2000 Tacoma. I have also
    view full answer...

  • Electric Trailer Brake Controller Recommendation for a 2009 Volkswagen Touareg TDI
  • I recommend the Tekonsha P2, # 90885. It is one of our highest rated and most popular brake controller models. If your Touareg has a factory tow package, then you will just need to connect the wires from the brake controller to the tow package wires under the dash. The tow package wiring may be located behind the lower appearance panel beneath the dash and to the right of the emergency brake pedal. It may be on the left, wrapped in grey foam. I have included a link to an FAQ article
    view full answer...

  • Which Brake Switch Wire is Used When Installing Brake Controller on 2008 Dodge Ram 1500
  • A brake controller has four wires exiting the rear of the controller, they attach as follows: the red wire attaches to the brake stoplight switch located at the top of the brake pedal. The color of the correct wire on the brake switch is usually a white wire with a tan stripe, but it could vary so it is best to find the correct wire you will need by testing the wires for function. The stoplight switch can have several wires exiting it, you will need a circuit tester like Quickee Tester,
    view full answer...

  • Installing Brake Controller on 2013 Dodge Grand Caravan with FactoryTow Package
  • It sounds like your Grand Caravan is wired like the Jeep Grand Cherokee. I have confirmed this by speaking with my contact at Tekonsha. He tells me that the wire you located is indeed the brake control output circuit. This wire would be ran through the firewall and would connect to the blue wire on the brake controller. To complete the installation, you will connect the white wire of the controller pigtail # 20127 to the negative battery terminal, the black controller wire to the positive
    view full answer...

  • Installing a Brake Controller on a 1988 GMC K 1500 Pickup Truck
  • GM did not install a brake controller adapter port in the C/K series pick up trucks, so there are no plug-in adapters that will allow you to install a brake controller without having to run wires. If you already have 7-way connector at the rear of your truck, then you could use wiring kit # 5506. This kit includes a duplex wire to run a brake output circuit from the brake controller to your 7-way and to run a wire from the brake controller to the battery (via the circuit breaker) and
    view full answer...

  • Brake Controller Wiring Functions to Install on a 1990 Dodge D250 Pickup
  • The red wire that disappears under the dash of your 1990 dodge D250 pickup is input from the brake switch and will go to the red wire on the brake controller. Blue is output to the trailer brakes and connects to the blue wire on the brake controller. White is ground as you know and connects to the controller white wire and the fused red wire is for power which connects to the black brake controller wire. If you had switched the other red wire and the blue wire nothing would have happened
    view full answer...

  • 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
    view full answer...

  • Where to Splice Brake Light Wire From Brake Controller To Stoplight Wire
  • Since your vehicle does not have a brake controller port, you will want to use a universal wiring pigtail. For example, if you have a Tekonsha brake controller, you could use a Plug-In Harness for Tekonsha and Draw-Tite Brake Controllers # 20127. You will want to use a circuit tester, like # 40376, to test the wires at the stoplight switch at the back of your brake pedal to find the wire that only has signal when the brake pedal is depressed. Once you have found the wire that only produces
    view full answer...

  • 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
    view full answer...

  • Hardwire Trailer Brake Controller Installation on a 2001 Dodge Van 1500
  • Installing a brake controller on your 2001 Dodge 1500 Van is a hardwire installation. In addition to the brake controller and the wiring harness like # 20127, you may also need a 4 and 7 Way Installation kit, # ETBC7 depending on what type of trailer connector is on the van. If the van already has a 7-Way trailer connector, you will need to add a brake controller installation kit, # 5506. On the back of the 7-Way connector, find the wire that is coming out of the 7:00 position. Cut the
    view full answer...

  • 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
    view full answer...

  • How to Find the Brake Switch Wire to Install a Brake Controller in a 2013 Ford Edge
  • Traditionally (at least from 2004 to 2007) Ford has used a green wire on the brake switch to attach to the red wire on a brake controller. However, the only way to know for sure is to test the wires using a circuit tester like # 40376. Manufacturers can use any wire they want and if they run out of the normal color they use, they grab whatever is available to keep the assembly line moving. To test the wire use the circuit tester to probe the wires. You need the one that only shows power
    view full answer...

  • Brake Controller Pigtail Wiring Harness For Infiniti QX 80
  • We do carry wiring pigtails for Tekonsha prodigy trailer Brake Controllers that will work on your 2014 Infiniti QX80. I have attached a link to a help article that explains installation of a brake controller. If you are looking for just the pigtail that attaches to the controller I recommend the Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller, part # 20127. This harness has 12 inch wire leads. If you prefer a harness with longer wire leads, I recommend the
    view full answer...

  • Parts Needed to Install an Electric Brake Controller in a 2016 Toyota Highlander with Tow Package
  • To install your Prodigy P3 Electric Brake Controller # 90195 into a 2016 Toyota Highlander you can use the wiring harness # 20127. This will plug into the P3 and then hardwire under your dashboard. If the Highlander needs a 4-way trailer connector the Curt Wiring Harness # 56042 will provide one for you. Then you can use the install kit # ETBC7 to add a 7-way and all of wiring to power your trailer's brakes. If you already have a 4-way then just add the # ETBC7. If you already have
    view full answer...

  • Will Tekonsha Prodigy P3 Brake Controller Work on Triple Axle Trailers
  • You can use the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 on a triple axle trailer with no worries about the wiring getting fried; the P3 is actually able to work with up to four axles and eight brake assemblies. If you are hardwiring the controller in you will need to make sure you use 30-amp circuit breaker # 38630 with your six brake assemblies. The low amperage on the red brake light switch is because it only needs enough amps to light the signals; it will not fry the
    view full answer...

Info for these parts were:

Expert Research:
Michael L
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Video Edited:
Zack K
Video Edited:
Mike H
Video Edited:
Dustin K
Video Edited:
Chris R
Video by:
Joshua S
Video by:
Andrew L
Video by:
Zach D
Video by:
Jacob H
Test Fit:
Nicholas E
Test Fit:
Shane H
Test Fit:
David F
Updated by:
Sarah W
Updated by:
Alexander C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.