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  1. Trailer Brake Controller
  2. Tekonsha
  3. Electric
  4. Proportional Controller
  5. Up to 3 Axles
  6. Dash Mount
Tekonsha Primus IQ Trailer Brake Controller w/ Custom Harness - 1 to 3 Axles - Proportional
Tekonsha

Tekonsha Primus IQ Trailer Brake Controller w/ Custom Harness - 1 to 3 Axles - Proportional

$116.95
Trailer Brake Controller
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In Use/Installed

This proportional brake controller has simple controls and a digital display for diagnostic information. Includes 3 boost levels, a slide-bar manual override, built-in battery protection, automatic leveling, and continuous diagnostics. Great Prices for the best trailer brake controller from Tekonsha. Tekonsha Primus IQ Trailer Brake Controller w/ Custom Harness - 1 to 3 Axles - Proportional part number TK73UR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Tekonsha Trailer Brake Controller

  • Electric
  • Proportional Controller
  • Up to 3 Axles
  • Tekonsha
  • Dash Mount
  • Under-Dash Box
  • Automatic Leveling
  • LED Display
  • Up to 90 Degrees

This proportional brake controller has simple controls and a digital display for diagnostic information. Includes 3 boost levels, a slide-bar manual override, built-in battery protection, automatic leveling, and continuous diagnostics.


Features:

  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
  • Straight-forward controls keep settings within easy reach
    • Gain setting lets you adjust the amount of power sent to the trailer's brakes
    • 3 Boost levels let you adjust initial braking power and aggressiveness
    • Slide-bar manual override allows you to control trailer sway or stop in emergencies
  • LED display shows your current settings and diagnostic information
  • Built-in safeguards protect your vehicle, trailer, and the controller
    • Runs continuous diagnostic checks to alert you to any potential problems
    • Minimizes drain on car battery when not in use
    • Prevents trailer brakes from overheating by reducing power output to them during prolonged stops
  • Quick-disconnect feature lets you easily remove and store the controller when not in use
    • Replacement wiring harness (sold separately) and replacement bracket (6927 - sold separately) required to swap controller between vehicles
  • Easy installation with automatic leveling
    • Position anywhere from -90 degrees to 90 degrees up and down
    • Controller must be parallel with direction of travel and horizontally level
    • No need to wire into your vehicle - custom-fit harness lets you plug in and go
    • Mounting bracket and hardware included


Specs:

  • Application: trailers with up to 3 axles (6 brake assemblies)
    • Compatible with electric brakes only
  • Dimensions: 5" long x 4-3/8" wide x 2-1/2" tall
  • Mounting range: between -90 degrees and 90 degrees vertically
  • Warranty:
    • Limited lifetime on brake controller
    • Limited 1-year on wiring harness


Gain Power Adjustment

Tekonsha Primus IQ Gain

You can adjust the gain (also known as output) with the thumbwheel on the front of the controller. Gain lets you set the maximum amount of power that will be applied to your trailer's brakes. A heavier trailer will need more power to achieve smooth, safe braking, while a lighter trailer will need less. Typically, the gain is only readjusted when you experience changing road conditions or if the weight of your trailer changes.


Power Boost for Heavy-Duty Towing

The boost setting controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. You can adjust this when you're towing heavy loads and you need more umph to bring your trailer to a stop. Your tow vehicle doesn't need that much power to brake in time, but your heavy trailer does.


Depending on the level of boost, your trailer brakes can start at either 13 percent or 25 percent of the set gain. What this means is that, instead of starting at 0, the brakes will start at 25 percent and get to 100 percent sooner. This keeps the trailer from pushing your tow vehicle forward.


If your trailer weighs less than your tow vehicle, no boost is needed. But, if you want your trailer to lead the braking, you can select level B1.


Boost Levels:

Approximate Gross Trailer Weight Boost Level Increase in Initial Power Output
Less than tow vehicle GVW B1 13%
Equal to tow vehicle GVW B1 or B2 13% or 25%
Up to 25% more than tow vehicle GVW B2 or B3* 25%
Up to 40% more than tow vehicle GVW B3* 25%

*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.


To adjust the boost, use the blue push-button on the top of the Primus IQ.


Slide-Bar Manual Override

Tekonsha Primus IQ Manual Override

The Tekonsha Primus IQ comes with an easy-to-reach, slide-bar manual override, great for stopping sway or controlling your trailer's momentum in emergencies. To engage the manual override, just push the slide-bar to the left, towards the center of the controller. This will activate the trailer's brakes and brake lights without you having to apply the brakes on your tow vehicle, perfect for limiting trailer movement while you're cruising.


Quick, Simple Installation

The Primus IQ can mount between -90 degrees and 90 degrees vertically, but the brake controller still needs to be horizontally level and parallel with the direction of travel.


After mounting the Primus IQ unit in your cab using the included bracket, simply plug the included custom harness into your vehicle. The other end of the harness plugs into the brake controller. To remove the IQ for storage when you're not using it, just unplug the unit and slide it out of the bracket. With a replacement wiring harness (sold separately) and replacement bracket (6927 - sold separately), you can even transfer the IQ to another vehicle.


Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake controller installation kit (ETBC7 - sold separately).


Proportional Braking

What is proportional Braking

The Tekonsha Primus IQ brake controller comes equipped with proportional braking to give you the best towing experience. Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Primus IQ uses an internal inertia sensor to detect how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



90160 Tekonsha Primus I-Q Proportional Brake Controller - 1 to 4 Axles

Replaces 39528 Hidden Hitch and 20191 Draw-Tite I-Stop IQ Proportional Brake Control

302100 Tekonsha Brake Control Wiring Adapter with 2 Plugs

Replaces Tekonsha 3021-P

Item # TK73UR

Installation Details TK73UR Installation instructionsAlternate Instructions TK73UR Installation instructions



Video of Tekonsha Primus IQ Trailer Brake Controller w/ Custom Harness - 1 to 3 Axles - Proportional

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




Video Transcript for Tekonsha Primus IQ Trailer Brake Controller Review

Hi there hollers there. Today we're going to be taking a look at Tekonsha's Primus IQ proportional trailer brake controller.This brake controller is going to be your entry level into a proportional brake controller and even though this is entry into proportional, I would recommend it over most of your time delay modules, just to how much smoother your breaking experience is going to be with a proportional controller, because proportional means that it uses an internal inertia sensor to detect the movement of the vehicle.So as we hit the brakes and go to a stop, that inertia sensor is going to detect that loss of motion and it's then going to use that information to apply a signal to the trailer brakes at the back, which will apply them. But it uses this information to help match the application of the brakes, to what you're doing here in the vehicle. So that way, when you hit the brakes, you're going to get a softer brake application at the trailer if you hit the brake softly in the vehicle. And then if you need an aggressive stop, like an emergency stop and you hit the brakes hard here in the vehicle, it's then going to detect that quick stop and it's going to put out a hard, aggressive brake to your trailer.With your time delays, you're just going to have whatever you have your setting to on your adjustment. And then a few seconds after applying the pedal, it will then apply to that exact amount that you've got it set to.

And that can be useful if you do a lot of off roading because you just want your brakes to apply. But for most people that are just going to be driving out on the roads, hauling going from campsite to campsite, proportional is going to be significantly smoother and a much more enjoyable experience.For example, when using a time delay brake controller with our boat here, if we come into an emergency situation or we're getting off the highway and we need to hit the brakes to come to a stop, with that time delay, we've got them set aggressive so that way we can get the application we need so this boat's not pushing us up that off-ramp. But when we're just breaking around town, going through stoplights and just here in the city, every time we hit the brakes, that brake controller applies with that same pressure and it's too much. We feel the trailer wanting to stop us before we get to the stop that we wanted to come to at the stoplight. So then we have to adjust our time delay brake controller down and up to meet those various situations so it feels properly when driving.

With our proportional controller in here, once we set the adjustment for the application, at that point, when we go into those different situations, the controller's going to take over and do all of those adjustments for us. So it just feels smooth the entire time.Our initial adjustment we're making is just for the particular size of the trailer that we're currently hauling. And with our boat here, we are getting pretty close to the weight of our Sorento. So we are going to be using the boost two setting with it to give us a little bit more aggressive braking to match this.Now we're just talking about the boost setting on our brake controller and it has three different boost options, as well as being able to turn the boost completely off. The boost is just going to give it a more aggressive strategy when using that inertia sensor information to be more aggressive.

And that's important when you've got extremely heavy things, you need that more aggressive braking. So when we got our John boat here hooked up, we're likely going to have it in the boost one, or maybe even the boost offsetting depending on how it feels, because this is significantly lighter than what our vehicle is.And for you people at home hauling a camper that is likely heavier than your vehicle, you'll want to use that boost three setting to get that more aggressive braking so this isn't pushing you when you're coming to a stop off the highway. Now, regardless if you're in the boost one, two, three or you have the boost turned off, your power adjustment is going to play a factor into how hard that applies. I'm going to hit the manual slider all the way over so you can see our maximum output. And as we adjust this, it does dial back what our maximum is going to be.

So if we have it on that boost three setting, it's going to apply more aggressively, but it's not going to apply harder than where we've got our power output set to here. So that way you can set that maximum and that can be really useful when you've got a medium or smaller trailer. Maybe you don't ever want this inertia sensor to put it at that maximum output. You can dial that back with the setting.Now, if you're using those boost settings, like when we we're backing our boat up here, it does make it more aggressive. And when you're backing up that inertia sensor might be applying a little bit too early, because when you're backing up, you're doing things slow and you're doing a lot of turning and a lot of tapping on the brake to get that position you need to, so you can get it into that spot. And that might be applying your brake controller's brakes here on your trailer, causing it to stop. And then all of a sudden you're backing into your trailer. Well, there's a reverse mode setting that we can temporarily apply for when backing up. So that way our boost isn't being too sensitive and applying those things.To put it into that reverse mode and temporarily cancel out the boost, you'll just want to hold onto your brake pedal. Just press down on that and then press down on the boost button and after a few seconds, you'll see, it will have a flashing R indicating that you're in the reverse mode. And now you don't have to worry about those brakes applying when you're backing up. And like most of your traditional brake controllers, there is a manual slide on it so you can manually apply the brakes on your trailer, if you need to.This can be useful for testing purposes. If you're just wanting to test the output, test the proper operation of your brakes, you can manually apply it with this. And it's also useful if your trailer starts to sway behind you, because that swaying motion when it starts going on, can potentially cause issues with stability and driving the vehicle. To straighten that out, we can hit our manual slide a little bit and that's going to apply the brakes in our trailer. So instead of being able to sway, our vehicle now wants to leave the trailer because the trailer is applying the brakes. That's going to pull them taut, and it's going to bring that trailer straight in line behind your vehicle once again.When your trailer is disconnected, you will see an NC located here on the screen. We just disconnected it right now and it does this so that, you know, hey, if you are driving, you have just been disconnected. You're no longer applying a brake signal to your trailer. It lost that input. And if you don't have anything connected, you're in your vehicle right now. You can be sure that you're not connected. You hit your slider here, it'll say NC. This can also be useful if you plug in your trailer and it doesn't seem like it's functioning, you should not see NC when your trailer's plugged up. That means that it's not currently detecting that there is a trailer plugged in and then you can correct any faults you've got with the wiring on your trailer, test it back out and ensure that you don't see the NC when you're hooked up.The two digit display will display your power output. And it also constantly monitors for any faults. And you can get fault codes on here. So you can use the troubleshooting in your instructions to help determine where the fault is and what's causing it.You'll have two different mounting options that come included with your brake controller. You've got the snap in mounting option, which is my preferred option because it's a little bit more low profile. It keeps itself closer to the dash and it only requires the two screws and you can easily click the module in and out with this bracket. It simply slides in the bottom there. And then it clicks up into place.And with our other bracket here, it does have adjustments. So if you can't achieve the appropriate angle with this bracket, you may need to use this one, but this can be mounted in a positive 90 degree to negative 90 degree orientation. So currently we're at zero that all the way straight up would be positive and all the way straight down would be negative 90 degrees. So you get a lot of options on how you're going to mount it. As long as you mount it level this direction, it can be again, tilted up or down, front to back. This other option here, you can see it has a slot on it. So you can mount it up using two screws here, wherever you want to position it. And with the slotted hole here, it will bolt to the side and then you actually get a tilt. So you can change that adjustment if you need it. In most cases, though, I feel like this is the best bracket for most vehicles.Now, when it comes to the installation of your brake controller, that's going to vary quite a bit, depending upon your vehicle. If you've got a truck, in most cases, they are already pre-wired underneath the dash and you can get a custom fit wire adapter here at etrailer.com, that will go from our Tekonsha brake controller and plug directly into the factory connector and then you're good to go. You'll want to use our fit guide to determine if there is a factory connector available for your particular vehicle.Now, something like our Kia here, your smaller SUVs or regular cars, those ones are likely not going to have a factory option. We have kits available though. Kit ETBC7 is going to provide you with your seven way connector as well as the wiring to get it hooked up for your brake controller.In addition to ETBC7, if you don't have a fully functioning four way connector, you'll need that as well because ETBC7 provides you with the wiring and seven way that you need for your brake controller, but does not provide you with the wiring for your lighting functions. But we have custom fit wiring options here at etrailer.com that have plug and play connectors for most vehicles. So you can simply just plug those in line and get a functioning four pole at the back, which provides you with all of your lighting signals. That'll just plug into ETBC7 here and then you can finish installing the rest of the kit to turn that four pole into a fully functioning seven way that can work with your brake controller.Now, if you've got multiple trailers you want to haul, then instead of going with the entry level proportional that the Primus IQ provides, I would recommend to Tekonsha's Prodigy P3. This will allow you to set trailer profiles. So if you've got a small trailer and a medium and a large sized trailer, or maybe two different large ones, maybe one's electric over hydraulic, you can make those adjustments and save those profiles. So that way you can just choose that profile when you hook up and it's already got your settings saved and you're ready to go.If you have limited space under your dash for a brake controller, there are brake controllers that can actually mount at the back and plug directly into the seven way connector like Curt's Echo. That's definitely one of the best options for that limited space there in the front. I'm a pretty tall guy and it really bothers me when I'm driving and my knee keeps hitting on my brake controller. So that's one of my favorite ones out there since I can get that out of the way and put it at the back of the vehicle.And that completes our look at Tekonsha's Primus IQ proportional brake controller.


by:

THANKS for the Brake Controller unit from ETrailer. It arrived w/in 5 days from your MO location to my So CAL residence.

Even as an Engineer/Scientist from the Delta IV rocket program and no experience with brake controllers, I was able to install this unit by myself. Your continued (live human) support and online video clips proved to be the key elements to this installation...without my symbolic pocket protector.

I have attached a few images of the unit, mounted to the fuse-panel cover (3/16 attachments with locking hex nuts) in a 2006 Toyota 4Runner SR5 (with factory tow package). The placement of the unit onto the panel cover allows a new panel cover (no holes drilled) to be used when it is time to sell the vehicle.



by:

I have installed the Tekonsha Primus IQ Brake Controller with the ETBC7 Brake Controller wiring kit on my 1990 Chevy Blazer Scottsdale. Everything that I needed was included and the installation instructions were simple. We will be trying it out for the first time in early November when we are going to rent a small travel trailer. If we like the experience we may buy a travel trailer to go with our brake controller! Before and after pictures attached. Thanks for the quick service and support.



by:

Product was delivered on time. Installation vehicle was a 2012 Ford Expedition Limited with factory tow package and was a breeze. I purchased the pre-wired pigtail which fit the Ford connector with no problem. I used the snap-in plastic bracket, mounted on the knee panel as close as possible to the center console. I held the bracket in place using painters tape to check the mounting position before driving in the self tapping screws. Start to finish was less than 10 minutes. I pull a 29' tandem axel travel trailer which comes in around 7,000 lbs and so far, stopping has been smooth and even with no jerking.



by:


Pictures of the install. Approximately
a 20 min job. First picture my finger is pointing to the factory plug with the etrailer supplied harness plugged in. Note the harness did not specify that the white common with the ring terminal should be connected to ground. But then again that SHOULD be obvious. I will be towing this weekend so I will rate the product then. One minor gripe is that there is always power to the unit which is a battery drain (as evidenced with the key out of the ignition and the unit stayed on) Not sure as to the impact but the controller can always be unplugged or removed.
Sorry for the dirty floor mats in the photos.



by:

Purchased the Tekonsa Primus IQ controller with wiring adapter for my Dodge Ram. Shipment arrived quickly and was exactly what I needed. Installation was a piece of cake. Cut an opening in the plastic stock dash location. Plugged the adapter into the Dodge plug under the dash and into the Primus. Worked perfectly. No fuss. Installed in about 10 minutes which included the time to cut the opening.. Picture will be poster...
I was so happy with the service from etrailers that I ordered the Blue Ox Swaypro hitch. Thanks ETrailer.com!



by:

installed on a 2009 F-150 everything was as advertised. It was plug and play. My truck had the wire plug behind the dash so was easy to hook up. I installed it in the hole below the coin holder. To reach the pre-wired plug you have to remove the panel anyway. I don't like any wires showing or anything I might hit with my leg. So did not mount it on the lower dash. You have to pull the plastic box out to unplug the connector. So just cut off the back of the box off and run the connector through the hole and connect to the controller. This way you can remove the controller anytime you want. Also you can see the readout much easier then mounting it on the lower dash. See pics



by:

Took me about 10 minutes to install on my 2000 Chevy Silverado. Plug and play.



by:

Installed in my 2014 GMC Acadia in about 30 minutes. Used the GMC plug-in wiring adapter. No problems. Looks like it was made for that location.



by:

This brake controller is easy to install and program.



by:

I've been running the Tekonsha Primus IQ for just over a year now. Very pleased w/ it.
Simple set up & operation. I tow a variety of trailers w/ my '07 2500 HD including dump trailer w/ firewood, car hauler, and enclosed cargo trailer. The weights are anywhere from empty, to 5k. Very easy to adjust as conditions change. I borrowed a trailer from a family member and the controller picked up a short. Come to find out a wire was pinched from ramps being slid in on the underside. The digital screen notified me before loading it up and hitting the road. I would recommend this product.



by:

Works like a dream on my single axle 3200 lb travel trailer and my 2017 Toyota Tacoma. Like many of the other Tacoma owner reviewers, I mounted my Tekonsha Primus IQ controller in the small cubby to the left of the steering wheel and ran a couple screws up through the lower switch access to mount the bracket hidden inside the dash. Ended up looking like a factory install, exposing just enough of the unit to access the controls and read the display.



by:

This is a great controller, recommended by my trailer manufacturer. I actually don't know too much about it, how it works, etc. But it doesn't require much knowledge to use it. Install it like instructed by etrailer it just works. You can see the number goes up as you apply more pressure on the brake pedal, and the trailer stops with no problem. It's magic.
The only thing I wished they do is to supply a longer length of the thin wire to connect to the break line. For my 2013 CRV, the break line you need to tap into is on the left side of the steering column, if you want to install the break controller on the right side, the wire is a little so short; but you can make it, it's just a little tight. I want to install the break controller to the right side of the steering column because I don't want to accidentally bump into it every time I get in and out of the car. It's a great, the best product though.



by:

Installed quickly an easily into my 2009 GMC Sierra 2500HD by wiring up to the factory harness. Be sure to watch the etrailer.com video to see which wires need connected at the fuse box in the engine compartment! (Easy hook-ups, just need to make sure you see which ones get hooked up and where.)

And if you don't use your ash tray, these brake controllers squeeze nicely into the ash tray compartment/recess in the lower part of the dash. Makes a great place to keep most of the controller out of the way and it's easy to install (you will have to create 2x new holes in the plastic detachable controller mounting bracket but its very easy - you can see the mounting screws in the 'new' holes and the old holes go unused as shown in the photo).

Only had a trailer hooked up once, but the controller functioned as designed. I think the 'Boost' function will come in handy if I use a well-loaded trailer and need some additional stopping power from the trailer.



by:

Shipping was great. Stared at it for a couple of days before unpacking. The trailer connector mounting was easy with the holes almost matching the existing holes on my 2013 Toyota Highlander. The first four wires are a snap, they are just plugged into the existing four pin connector. I routed the two wire cable towards the front using ty wraps and improvised L brackets fixed to existing chassis screws.

I mounted the Circuit Breakers on the inside of the left fender making sure there was hood clearance (see photo). Then I hit a snag. There was no easy way to get the brake and 12V power wire to the brake controller inside the car. For grins, I goggled "brake controller video" for my car and came up with a video made by "eTrailer." (Thank you eTrailer) Three things from the video helped me: wire access from inside the car through the firewall, a place to mount the controller and how to locate the brake wire. After the installation I had 18" of two wire cable left over. The install took me about six hours. (I'm 71 and I took my time.)

A couple days later I connected the trailer for a test ride. The brake controller worked like a dream.

Things I liked: Retaining the four wire trailer plug setup next to the seven wire trailer plug. Controller display works but you don't have to look at it. The two wire cable was adequate for the job. Being an Engineer (retired) I worry about things like that.

Thing I didn't like: The mounting plate for the trailer plug is a little weak. A stiffer plate would have been better suited for me. and, oh yeh, somebody else to install it. ;=)




by:

Bought a Tekonsha P3 Trailer brake controller for my RAM 3500 HD when the OEM unit failed. A bit of work is needed to mount it but was well worth the price and effort to install. Simple to set up and adjust as the new brakes wore in. Braking with my 9750 pounds 5th wheel is now superb. The picture shows the final assembly just before popping the unit into the spot where the original unit was installed. My advice is: forget the factory unit, just buy one of these and enjoy your towing experience.



by:

IT WORKED PERFECTLY. This is my first time to purchase, install, and use a brake controller. Add to top it off, it was my first time to pull a trailer. It was on a Saturday, exactly six days before a scheduled tent-camping trip, when my wife found a good deal on a used pop up camper. The camper was equipped with electric brakes, so it was required to install a brake controller on my SUV. It was Sunday (next day) when I ordered the Tekonsha TK90160, along with the other necessary part numbers #118449, #A0500, #18136, #ETBC7. I was planning to take the parts to a shop to have it installed as soon as I received them. I was hoping I can get them on Tuesday, but UPS dropped it off to the local post office, which caused it to be delivered at 3pm on Wednesday afternoon. The shops that I went to either did not have an installer available, or were all booked for the week. I had to "take courage" and install it myself. I am so thankful that etrailer.com provides extensive videos of reviews, installation, and operation of the products that they sell. I made the connections as shown and hoped for the best. I picked up the camper on Thursday, and was sooo relieved that it worked perfectly. We took off on Friday and the camping trip was a success. We are looking forward to making more good memories with our camper. Thank you etrailer!



by:

Installation was straightforward with help from the online videos. I also installed the ETBC7 universal installation kit. At first I thought etrailer had shorted some parts, but it turns out that the 18140 bracket is sold separately. Had to take back the choice words I uttered under breath. Ended up mounting the provided bracket directly to the hitch with screws which was a little more difficult. As a safety measure--and a little on the overboard side--I also used a dremel to cut a small slit in the center of the provided bracket so I could attach a hose clamp similar to the one in 18140.
Space inside the cab for mounting the brake controller was tight.
Nonetheless, all works fine per my test meter. Don't yet have a trailer to connect, but meter checks out fine.



by:

2011 f150 3.5EB XLT superCrew. Easy plug and play install with the harness I bought also on etrailer, the problem was mounting. I hated the way the supplied mounts looked and didn’t want to bump into it. With some careful measuring and a hacksaw I was able to mount it inside the “plastic cup thingy” that fills the void where the factory controller would be. Attached pictures, the factory plastic cup thingy screws keep it locked in place and the supplies screws let’s you mount the controller into the plastic cup. Looks crooked with the white/silver plastic covering but it is aligned with direction of travel and level, also berey snug and mounted solidly.



by:

Everything arrived on time and as advertised. Installation went without a hitch. The imbedded controller was removed without a problem and the wiring adapter worked as advertised. The EVIC does display an error but is easily corrected by depressing the back button before shifting into gear, Another good experience with etrailer!

Ken L



by:

Installed this in my 2018 Tacoma TRD Off Road.
After removing the sill trim and Kick plate to find the Factory Plug.
I took the Bottom left dash down (3 Bolts) and some clips to gain access to the small cubby on the left of the steering wheel. Popped it out, trimmed it to fit with my Dremel and held the Unit in place with 3-M automotive trim tape. I only had to cut the sides of the cubby and a square hole for the plug to the unit. Looks Factory installed.
All in all it took a couple of hours to do. my truck has only 135 miles on it so I was extremely careful.
As you can see by the pics it's not in the way at all.
It could also be put in the center console but it has a wireless charger and I didn't want any Electronic interference or block access to my coffee cup holders.



by:

I ordered and received my Tekonsha Primus IQ brake controller with wiring harness for my 2012 Ford Expedition. To keep from drilling mounting holes for the contoller, I double backed taped it to the top of the center console. In order to hide the wires, I had to strip some of the braided wire loom protective cover away so to be able to push the wires through the gap between the dash and console. The installation came out very clean and access to the controller couldnt be better.
Hooked up the trailer and took it for a drive. Within a few "stops" I had the brake system dialed in.Working perfectly.
PICTURES ATTACHED.



by:

I'm sure the product is great, but it does not work with my truck at all. Everything connects, all fuses are good but it receives no power. I had better luck with a cheap one from Amazon prior to this expensive one.



by:

I installed the Tekonsha Primus IQ Brake controller in my brother's 4 Runner just before he and his wife took their small (18 ft) camper on a month long trip out west. It did what was expected of it... Proportional brake control, with little adjustment after initial set up!



by:

Loved this thing on my 4Runner towing our 4,000 pound trailer over 8k miles last summer. Saved us at least twice on the Highway and nice to adjust the sensitivity for city.



by:

Primus Iq Brake Controller installed in a Mercedes Benz 2017 Sprinter.
The van's electronics interface with the Primus, and it can detect when the trailer brakes lock-up, which lights an dashboard indicator lamp. I used the Mercedes-specific plugs under the driver's seat and ran the cables through the battery box to the dashboard.


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  • Brake Controller Plug Location on 2021 Jeep Grand Cherokee
    The factory brake controller connector on your 2021 Jeep Grand Cherokee is located under the dash behind the hood latch, as shown in the provided photo. Keep in mind, the connector will only be there if the vehicle has the factory tow package which includes the 7-way trailer connector at the rear bumper. If you have the tow package, to install the Tekonsha # TK90160 Primus brake controller on your 2021 Grand Cherokee you'll need the Tekonsha # TK93VR wiring harness. One end plugs into...
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  • 7-Pin Wiring Harness And Brake Controller For A 2024 Hyundai Santa Cruz
    Hello Evan, I can help clear this up. The Curt T-Connector # C68JR that you mentioned is for vehicles already equipped with the factory tow package. Meaning there will be an OEM brake controller plug already present under the dash and the brake controller would simply plug right in. So, if you do have the factory tow package, you can easily install the # C68JR wiring harness. Then for example, you can use a brake controller like the Curt TriFlex # C24VV, along with the Custom Wiring Adapter...
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  • Brake Controller Plug Location on 2021 Jeep Grand Cherokee
    The factory brake controller connector on your 2021 Jeep Grand Cherokee is located under the dash behind the hood latch, as shown in the provided photo. To install the Tekonsha item # TK90160 Primus Brake Controller, you were looking at on your Grand Cherokee you'll need the Tekonsha item # Tk93VR wiring harness. One end plugs into the controller, the other end into the factory connector under the dash.
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  • Where Would Diode Need to Install on Brake Controller If it Was Needed
    If you had a vehicle that needed a diode installed when installing a brake controller you'd need to install the diode like part # RM-690 on the red wire of the brake controller. This prevents the brake controller from back feeding onto the vehicle wiring when the manual override lever is slid.
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  • Installing Brake Controller on 2011 Jeep Liberty With Factory 7-Way Connector
    Is the 7-way factory installed? If so, it'll say MOPAR on the spring loaded cover for the 7-way socket. If so, Jeep kind of prewired the vehicle by running the brake output circuit from the 7-way up to the passenger cab and terminating it under the dash, usually behind and above the e-brake pedal. You'll be looking for a coiled blue or light green wire that might have a tag affixed to it that reads 'trailer brake'. Sometimes the wire is located under the carpet in this area or behind the...
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  • Parts Needed To Install 7-Way and Tekonsha Trailer Brake Controller On a 2022 Ford Bronco
    I recommend using the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter # TK55VR to install the Tekonsha Primus IQ Trailer Brake Controller # TK90160 and 7-way on your 2022 Ford Bronco. This Kit includes the Tekonsha Plug-In Wiring Adapter # 22292. The Hopkins Tail Light Converter Kit # HM48895 should not be used on your Bronco as this puts the power strain on the factory wiring and does not uses a powered converter like the Tekonsha above. Also the Pollak Black...
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  • Location of Brake Controller Port on 2023 Jeep Grand Cherokee 4xe
    Hi Robert; it looks like your 2023 Jeep Grand Cherokee 4xe doesn't have a brake controller port since you don't have the tow package. This means hard wiring the # C27JR is your only option for installation. If have a plug and play wiring harness I would return it to whoever you bought it from.
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  • Recommended Trailer Brake Controller for 2010 Chevy Tahoe
    For your 2010 Chevy Tahoe the basic brake controller that will work well for you is the Tekonsha Primus IQ Trailer Brake Controller # TK90160. The wires are already present under the dash for this installation. If you prefer a controller that has more information readily available on a screen versus codes to decipher then use # 90195 instead.
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  • Brake Controller And Wiring For A 2022 Toyota RAV4
    To install the Tekonsha Primus IQ Trailer Brake Controller # TK90160 on your 2022 Toyota RAV4, you're also going to need to add a 4-pole # C56434 and a 7-way # ETBC7 trailer connector. Form here you're all set to successfully install the Tekonsha Primus IQ brake controller. I have also included a few installation videos for you to check out.
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  • Recommended Plug In Brake Controller for a 1996 Ford F-350
    For your 1996 Ford F-350, I recommend using the Tekonsha Primus IQ Trailer Brake Controller part # TK90160. The Tekonsha Primus IQ is an excellent option for you. It has multiple boost levels for different trailers, integrated safeguards that protect the vehicle/trailer/brake controller, and it will run continuous diagnostic checks to ensure everything is in order when you need it to be. If you take a look at the 3:23 mark in the attached install video, you can see the location of the...
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  • Brake Controller Solution for 2019 Volvo XC40 R-Design T5 with Stealth Hitch Package
    We have an easy brake controller solution for your 2019 Volvo XC40 that has the Stealth 7-way kit # SH36FR but we don't have a way to wire in the # TK90160 that you referenced. Instead we have the very easy to install Curt Echo Mobile part # C51180 which basically just would plug into the 7-way at the rear of your vehicle and once synced to a smart phone is ready to tow
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  • Trailer Connector for Towing Camper With 1995 Dodge Ram Pickup
    In order for your trailer taillights to function properly, you'll need to install a trailer wiring connector on your 1995 Ram. The two most common types of trailer connectors are the 4-pole and the 7-way. I'll link you to a trailer wiring FAQ article that shows the differences between them. If your camper has a 4-pole connector, you'll use part # C55317. The wiring harness will install as shown in the installation instructions that I've linked for you. If it has a 7-way, there'll be...
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  • Recommended Parts for Towing a 2020 Hiker Highway Basic with a 2024 Subaru Outback Wagon
    Thanks for reaching out, John! The etrailer Trailer Hitch Receiver # e25TR is definitely the hitch I recommend for your 2024 Subaru Outback Wagon, and then for wiring the best options are to use the T-One # 118467 along with the Universal Kit # ETBC7 - the combination of these wiring kits gets you everything needed to add a brake controller. For a brake controller, I highly recommend the Redarc Tow-Pro Elite # RED44FR because it doesn't take up space in your cab like the traditional "brick"...
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  • Brake Controller and Trailer Connector Recommendation for 2009 Chevy Express
    Since your 2009 Express (which was built across the street from our facility) doesn't have a factory 7-way, there isn't a plug and play trailer connector option. That's not the end of the world though, because the installation is pretty simple, and we can help you through it. First, you'll need a 4 pole trailer connector to get the lighting circuits. I'd recommend part # 118392. You'd then choose a brake controller. I'd highly recommend a proportional controller like the Tekonsha Primus,...
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  • Brake Controller Installation on 2019 Chevy Silverado 1500 LD
    When installing your Tekonsha Primus IQ # TK90160 with the # 3016 plug in adapter you will need to plug the adapter into the fuse box under the dash board- you should not need to remove and dash panels but you will need to remove the black cover on the box. I have linked installation videos of these parts on similar trucks that you can use as a guide when installing your brake controller.
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  • Comparing the Tekonsha P3 and Primus Brake Controllers
    I will be happy to compare the Tekonsha P3 # 90195 and the Primus # TK90160 for you. First, I will cover features that both controllers share. Both controllers: Will install the same in your vehicle Come with a universal pigtail Are proportional controllers (apply trailer brakes to the same amount as the vehicle is braking) Have automatic leveling Have limited life time warranties The controllers have several differences: The P3 has an LCD display. The Primus has an LED display The...
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  • My Brake Controller Is Turned All The Way Down But It's Still Too Much Braking For My Trailer
    Hey Terek, that doesn't sound fun at all. What brake controller do you have? I see you were looking at the discontinued Hayes Syncronizer 81725. If that is what you have, then there is only one adjuster wheel on this model, whereas some other controllers like Tekonsha Primus IQ Trailer Brake Controller # TK90160 have 2 - 1 for gain (power to brakes) and 1 for level of intensity. It sounds like the full voltage is getting sent to the brakes due to an issue. Either the controller is defective,...
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  • Should I Choose a Proportional or a Time Delayed Brake Controller for my 2008 Ford F-150 and Camper
    The proportional is with out a doubt the way to go. It provides better braking performance in all ways compared to the older time delayed technology. It will apply the brakes proportionally or similar to what the vehicle is doing. During emergency braking it applies them quite quickly in a normal stop they are more gentle and will stop applying them at stops. A time delayed controller applies the brakes the same every time regardless of the situation. this can lead to not enough braking...
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  • Recommended Brake Controller and Installation on 2021 Toyota RAV4
    I'd be happy to assist you with that. First, you'll want to choose a brake controller. You could go with a traditionally mounted brake controller like the Tekonsha Primus, part # TK90160. This controller would work perfectly for you, as long as you don't mind having the controller mounted to the underside of the dash to the right of the steering wheel, within easy reach of the driver. Some folks don't care for the appearance of a traditional style brake controller and prefer a remote mounted...
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  • Recommended Trailer Wiring and Brake Controller for 2018 Subaru Outback Wagon
    We have everything you need to install a 7-Way/4-Way connector and a trailer brake controller on your 2018 Subaru Outback Wagon as long as it is not the Sport model. The Hopkins Trailer Connector Socket # HM40975 that you referenced is designed to plug into an existing tow package port on certain Chevy, Ford, GMC, and Nissan trucks. This will not work on your Outback Wagon. If you do not have any connector installed yet on the vehicle, you will need to start with a 4-Way harness. I recommend...
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  • Recommended Brake Controller for 2014 Ford F-150 With Factory 7-Way
    The correct choice would be with factory 7-way, although the custom wiring harness is the same for the 4-way option. I highly recommend choosing a proportional brake controller for your 2015 F-150. Proportional brake controllers activate trailer brakes in proportion to your vehicle's braking action. The Tekonsha Primus IQ 3 # TK90160 is going to be the best choice close to the price point you're looking for. The # 22292 will plug into the factory port under your dash for an easy installation....
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  • Why Is My Tekonsha Primus IQ TK90160 Showing An o9 Error When Plugged Into A 2016 Ford Flex
    The o.9 on your Tekonsha Prims IQ # TK90160 does mean you have a bad ground connection. This will be due to the # 3034-P plug that you are using. As your 2016 Flex came with the factory tow package, you will actually need the # 22292 plug. The vehicle end plug will look the same on both these pigtails, but they will be pinned differently. With that being said, you have one of two options to fix this. You can return the # 3034-P and purchase a new # 22292, or you can re-pin the # 3034-P....
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  • Recommended 7-Way Trailer Wiring Harness with 4-Way and Brake Controller
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter part # 22114 is the best option for a 2018 Ford Transit T350 (All Models with Single Rear Wheels) as it requires the least amount of modifications needed. That said, this comes with a 7-way trailer connector only so if you needed both a 7-way and 4-way you would also need the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket part # HM40975 to replace the one that comes with the above. For a brake controller,...
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  • How Would Prodigy P3 # 90195 Replace Factory Brake Controller of 2010 Dodge Ram
    To install a P3 brake controller part # 90195 in your 2010 Dodge Ram you only need the correct install harness part # 3021-P. The connector that the harness will plug into is located under the dash between the steering column and the emergency brake pedal, as shown in the photo I've provided for you.
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  • Parts Needed to Convert Boat Trailer from Surge Disc Brakes to Electric Over Hydraulic Brakes
    What you really only will need is an actuator kit like the HydraStar part # HS381-9067 which comes with the actuator you need and all of the electronics needed to install the kit. You'd just connect the line that runs to your current surge actuator to the back of the Hydrastar and it would tie right in to the system you have now. You can then lock out your surge actuator by welding the two moving sections together or running a bolt through both pieces. Your 2010 Dodge Ram would not have...
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  • Brake Controller Install Harness Recommendation for a 2012 Ram 1500 to Install Tekonsha Voyager
    The Tekonsha Voyager # TK90160 can be installed in your 2012 Ram 1500. All you will need is the correct install harness to allow it to connect to the truck. For that you would need the part # 3021-P.
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  • Recommended Brake Controller and Installation Kit for 2012 Dodge Ram Pickup
    It sounds like you have the factory installed 4-way and a prewired brake control wiring adapter on your 2012 Dodge Ram Pickup. In addition to the 4-way you will need to install a 7-way to gain the functions the brake controller provides at the back of the vehicle. I recommend the # ETBC7 kit because it will come with everything you need to adapt your 4-way to the 7-way connection. The Tekonsha P2 # 90885 is a great brake proportional brake controller. A proportional brake controller...
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  • Recommended Brake Controller Wiring Adapter for 2011 Ram 2500
    If your 2011 Ram 2500 came from the factory with a 7-way trailer connector installed then it will have an under-dash connection port for a brake controller such as the Tekonsha P3 # 90195. In the case of your 2011 Ram, you will use a different wiring adapter, part # 3021-P, but NOT the harness # 3024-P that you referenced. That harness only fits the 2015 model year Ram trucks. If your truck did not have any factory trailer connector then you will not have the quick-connect port under the...
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  • Brake Controller Recommendation to Replace Integrated Controller of 2012 Dodge Ram 2500
    The P3 brake controller part # 90195 would be a great option for your 2012 Dodge Ram 2500. This is one of the nicest controllers on the market because of how well it works, how reliable it is, and how easy it is to use. The needed harness for this controller and your truck is the part # 3021-P which will plug in under the dash. To install an aftermarket brake control you will have to disconnect the ITBM. This will turn on a warning lamp on the instrument cluster. In order to disconnect...
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  • Availability of a Brake Controller Wiring Harness for a 2010 Dodge Ram 1500 and a Prodigy P2
    You have it right, in 2010 Dodge changed the brake controller wiring harness connector under the dash and the adapter that you would need is the # 3021-P to use to install the Tekonsha Prodigy P2, item # 90885. You will not have to get the harness from the dealer. If you need a harness to splice to a brake controller that has existing wires coming out of the back, you can use the Universal Brake Control Wiring Adapter, Dodge Ram, item # 3021-S. The connector should be located under the...
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  • Factory Brake Controller on 2012 Ram 3500 Will Not Work With EOH Brakes
    It sounds like your factory brake controller on your 2012 Ram 3500 is at the end of it's life, or that it isn't compatible with an EOH brake configuration even though it is supposed to be. One other thing you can do to double check, is to set the brake controller at 0.0 and have a buddy depress the brake pedal while you use a Circuit Tester, like part # 40376, to see what the voltage is for the brake controller on the 7-Way at the rear of your Ram. You will want to test the pin in the...
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  • Availability of Adapter for 2013 Dodge 3500 with ITBC for Dexter Electric over Hydraulic Axle
    The Dodge integrated brake controller is not designed for use with electric over hydraulic braking systems. The best way to resolve the issue is to bypass the Dodge controller and use one that is compatible with electric over hydraulic brakes. I recommend the Tekonsha P2, # 90885 and wiring harness # 3023-P. In order to install this controller you will need to disconnect the integrated controller which will give you a warning light on the dash. In order to disconnect the ITBM and not...
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  • Comparing Tekonsha P2 # 90885 and P3 # 90195 Trailer Brake Controllers
    You win on this one either way! Both the Tekonsha Prodigy P2 # 90885 and P3 # 90195 versions are superb proportional brake controllers that are among the highest-rated of all such items we sell. Both offer compatibility with either electric or electric-over-hydraulic brakes, both allow a 360-degree vertical plane operating range and both provide proportional braking to minimize wear and tear on your vehicle and trailer brakes. The main difference between them is the display, which for...
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  • Installing an Aftermarket Brake Controller on a 2012 Ram with Factory Brake Controller
    In order to install an aftermarket brake controller like the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 on a 2012 Ram 1500/2500/3500 with an integrated trailer brake module (ITBM) you will need to take the truck to your local Dodge dealer and have them reconfigure the power control module. This is all outlined in the attached help article. If your 2012 Ram 1500/2500/3500 has a factory 7-way trailer connector then you will want to use part # 3021-P to install the above...
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  • Dodge Factory Brake Controller Does Not Work with Electric Over Hydraulic Brakes on Horse Trailer
    It sounds as if you have an electric over hydraulic braking system on your horse trailer. Most OEM brake controllers are not compatible with electric over hydraulic actuators. If you trailer brakes are working, you may find that your actuator is cycling on and off when connected to the truck and this will significantly shorten the life of the actuator. The Dodge factory brake controllers are designed to be used with electric trailer brakes only and are not designed to be used with electric...
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  • Wiring Harness for Prodigy P2 Brake Controller on 2011 Dodge Ram 2500
    If your 2011 Ram 2500 has either the factory 7 way or factory 4 way, then you will want the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Dodge # 3021-P. The harness is located underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal so you will simply plug this custom harness to the factory harness and then the back of your Prodigy P2 # 90885.
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  • Does Aftermarket Brake Controller Install on 2011 Ram 2500 Require Dealership Visit
    Your 2011 Dodge Ram 2500 would not need any computer work done at a dealer to activate the brake controller. Most likely the brake controller just needs to have an initial setup done on it and you'll start feeling the trailer brakes like you should. I checked your order notes and it looks like you bought the install harness part # 3021-P which is the correct install harness to install a Tekonsha controller like our P3 part # 90195 in your 2011 Ram 2500, but since I am not sure what controller...
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  • Solution for 2010 Ram wIntegrated Brake Controller Doesn't work w Electric Over Hydraulic Actuator
    Not all brake controllers are designed for use with electric over hydraulic actuators. Especially Dodge integrated brake controllers. They notoriously don't like to work with an EOH actuator. Best option is to swap to a controller that has an EOH setting like the Prodigy P2 part # 90885. You will need the part # 3021-P for an install harness. I attached a help article that covers how to swap out the integrated controller on your truck as well.
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  • How to Iinstall a Brake Controller on a 2011 Jeep Grand Cherokee Overland
    To install a brake controller on the 2011 Jeep Grand Cherokee you will most likely have to hard wire. From the information I was able to obtain there is a brake controller connection point, but the connector is not available aftermarket. If a connector is supplied, it will be in one of two locations. The first is under the dash just to the left of the steering column. The second is behind the driver's side kick panel next to the emergency brake pedal. If you find the connector you will...
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  • Electric Over Hydraulic Trailer Brakes Not Working with Pedal on 2010 Dodge Ram Factory Controller
    The adapter, # HBA-CAM is designed for Chevy and Ford integrated brake controllers. The Dodge integrated brake controller is not designed for use with electric over hydraulic braking systems at all. The best way to resolve the issue is to bypass the Dodge controller and use one that is compatible with electric over hydraulic brakes. I recommend the Tekonsha P2, # 90885 and wiring harness # 3021-P. In order to install this controller you will need to disconnect the integrated controller...
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  • Brake Controller Recommendation for Install Harness part # 3021-P
    That's hard to say, but if the dealer you went to was selling a brake controller install harness designed to fit Tekonsha brake controllers like the P2 part # 90885 and newer Dodge vehicles then most likely it was a # 3021-P. Without knowing what vehicle you have it is hard for me to say for sure if this would the be correct harness for your vehicle.
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  • Installation of Tekonsha P3 Brake Controller on a 2011 Dodge Ram Pickup
    It sounds like your Ram pickup is in the 4th generation which is from 2010 to present so I would think that the 2013 video would be closer related than the 2008, which is part of the 3rd generation. I also linked a snapshot from the directions of the adapter plug # 3021-P which shows where the corresponding plug on your vehicle will be. I wish we had more vehicle installs but are limited by what customers vehicles come into our shop. Where to mount the Tekonsha P3 # 90195 is generally...
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  • Location of Brake Controller Connector on 2010 Dodge Ram
    The brake controller installation on a 2010 Dodge Ram would be pretty much identical to that as the 2009 model shown in the video. The installation port is located under the dash midway between the emergency brake and the brake pedal, just above where your left knee would be as you are sitting behind the wheel. The connector is either white or light blue in color. If you need the wiring adapter that connects the brake controller to the under-dash connector, we offer it. The part # is 3021-P...
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  • Can Brake Controller of 2011 Dodge Ram Be Replaced to be Used with Hydraulic Brakes
    The factory controller of your 2011 Dodge Ram would need to be replaced with one that is compatible with electric over hydraulic brakes like the Prodigy P3 # 90195 that you referenced. There isn't a way to convert what you have by a setting change. In order to disconnect the ITBM and not get the warning lamp, your local Dodge dealer will have to reconfigure the TIPM (Totally Integrated Power Module), of the truck. Once the TIPM has been reconfigured, and the ITBM has been unplugged, you...
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  • Trailer Brake Controller Recommendation and Wiring Harness Needed for 2012 Ram 1500
    We can help you with choosing a suitable trailer brake controller as well as the correct wiring harness and other components to get you ready for towing. The brake controller you referenced, the Tekonsha Prodigy P2 # 90885, is the most popular unit we sell and it is highly rated by our customers for its easy set up and reliable performance. Plus this controller offers the flexibility to work with both electric and electric-over-hydraulic trailer brakes. Not all brake controllers have this...
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  • Wiring Adapter to Install Tekonsha Prodigy P3 in 2017 Ram 5500 with Factory Controller
    You can install the Prodigy P3 trailer brake controller # 90195 in your 2017 Ram 5500 that has a factory controller but you will use wiring adapter # 3024-P, not part # 3021-P. I confirmed this harness fit with Tekonsha. Once you disconnect the factory unit a code will appear on your dash. This error code does not affect operation of the Prodigy but if you want to clear it you will need to visit a dealership to have them electronically disengage the factory controller connection. This...
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  • Weak Trailer Brakes Using Factory Integrated Brake Controller on 2010 Chevy Silverado
    Ten is usually the maximum setting, depending on the controller, and should equate to a full 12 volts of power going back to the trailer brakes. It sounds like you might have some weak braking with the factory brake controller. But it might not be the controller at all. Before going for a new controller I recommend doing some test to determine if there is some other issue causing the weak braking. Nine times out of ten weak braking indicates that the trailer brakes need to be adjusted....
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Info for this part was:

Employee Lindsey S
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