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  1. Trailer Brake Controller
  2. Tekonsha
  3. Electric
  4. Proportional Controller
  5. Up to 3 Axles
  6. LED Display
Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional

Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional

Item # TK90160
Our Price: $108.79
You Save: $56.09
Trailer Brake Controller
Shipping Weight: 1.09 lbs
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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 - 1 to 3 Axles - Proportional part number TK90160 can be ordered online at or call 1-800-940-8924 for expert service.
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Tekonsha Trailer Brake Controller - TK90160

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


  • 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
    • Included harness hardwires to vehicle and plugs into controller
    • Plug-in, vehicle-specific adapter (sold separately) available for select vehicles to reduce installation time
    • Mounting bracket and hardware included


  • 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
  • Limited lifetime warranty

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, hardwire one end of the included pigtail harness directly into your vehicle. The other end 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.

Installation Accessories

See'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

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

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.

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Installation Details TK90160 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional - TK90160

Average Customer Rating:  4.8 out of 5 stars   (2052 Customer Reviews)

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.


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.



Thanks Patrick for the follow-up. The brake controller, for the camp trailer, installation went relatively easy and operation of the unit continues to be great. More importantly is your product follow-up for Customer Service...providing a r-e-a-l name vs. Customer Service dept. along with a phone number and email contact information all pretty rare in todays environment. E-Trailer continues to be my first-source for product information search.


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.

Steve M.


After a year of use I am very impressed with this controller. Previous controllers I have used tend to be too aggressive on applying the trailer brakes, especially in stop and go driving, but not this unit, it is very smooth. However, when needed, as in one emergency stop last year it pulled us up quickly and straight. I would certainly recommend this product.


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.

V J.


Brakes work perfectly. Our rental trailer worked out great for an 800 mile round trip and 4 nights at a Florida State Park. We bought a used 20 travel trailer in February and have taken it on two short trips and a month long vacation. We have had no problems at all and now have almost 3000 miles of towing behind us. One emergency stop was exciting, but the rig stayed perfectly straight and probably stopped shorter than the Blazer would have done without the 4 extra brakes behind it. Thanks for all of your help and support.


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.

Etrailer Expert

Patrick B.


Just a quick note, there is an automatic shut-off on the Primus IQ. After 15 minutes or so of in activity, the controller will power down automatically. As soon as the controller detects movement, it comes back on. No battery drain, and you do not have to remember to turn the controller off or on.

Les H.


what year Tundra in pics . I have a 08 and I am going to get an IQ for it . do you still like yours ? i guess a ground is needed ? I see what looks like a one white wire with harness


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





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!


I haven't hooked up my trailer yet but the connecting and mounting instructions are easy to follow and my vehicle came with a brake controller wiring pigtail which made installation even easier. It powers up and responds the way it is supposed to. I have no doubt it will work properly based on hundreds of other 5 star ratings.



I finally installed the brake controller and it was easy to follow the instructions and it worked perfectly during my test runs. Shortly thereafter the wife decided the Expedition was too large for her to drive comfortably and we sold it. Not my first experience with Tekonsha brake controllers. It is a reliable product.


I love these controlers. Can adjust perfectly and no jerking of the e brakes. Big on stopping whether it’s a hard or soft stop. No locking up of the trailer wheels.


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.


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.


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.


Only used on last year's trip,worked flawlessly once set.Would recommend.2005 f150 with factory tow package.


Not my first Tekonsha and it won't be my last. Their brake controllers are flawless and easy to install, especially with a Tekonsha adapter. Installation took me no more than 15 minutes. The hardest part is figuring out where to mount the controller on my dashboard.


Installed quickly an easily into my 2009 GMC Sierra 2500HD by wiring up to the factory harness. Be sure to watch the 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.


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. ;=)


Installed easily and now trailer brakes better with truck with no lock ups and is easily adjustable to road conditions while in motion. It is very nice to look at display and see the trailer plug is or is not connected.



What I have really appreciated is the ability to adjust the brakes as circumstances dictate. By glancing at display when I brake, to see how the trailer is responding, gives me real time ability to adjust as needed.


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.

Terry G.


Still working great


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 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!


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.


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.


The controller works well with my truck.



The controller installation was easy and it has worked well.


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.


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.


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.


very pleased with itself. the primus iq controller works very well, however i was expecting a few more inches of wire on the plug. had to install it where i did not want to, as was not willing to make 4 more splices to extend it.
it's a lot easier to shorten it than to extend it.

Show More Reviews

See what our Experts say about this Tekonsha Trailer Brake Controller

  • Can a 24 Volt Vehicle Install a 12 Volt Brake Controller
    It is possible to connect a brake controller like the Primus to a vehicle with a 24 volt system but you will need a relay to do so. I attached a picture that shows how the relay would wire to your vehicle as well as a help article that covers how to accomplish this as well. The brakes will still be a 12 volt setup.
    view full answer...
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  • Troubleshooting a Tekonsha Primus Brake Controller that Does not Power Up
    There seems to be a wiring problem with your Tekonsha Primus IQ Brake Controller part # TK90160. The first place I would look is the ground wire of the controller. You need to make sure it is connected to the negative post of your battery. The next place I would look would be the power wire of the controller, it should run to a circuit breaker and then from there go to the positive side of your battery. I attached an FAQ article on troubleshooting brake controllers for you to check out also.
    view full answer...
  • Troubleshooting Error Code NC on Tekonsha Primus IQ Trailer Brake Controller TK90160
    With the Tekonsha Primus IQ trailer brake controller # TK90160 the error code NC indicates that the controller no longer senses an electrical connection to the trailer's electric brake magnets. There are several possible causes for this: the trailer is not plugged in to the vehicle; the brake controller has lost connection to the trailer brake circuit due to corrosion in the connectors; or the trailer brake magnet's ground wires are loose. If you get the code .C. when no trailer is connected...
    view full answer...
  • Troubleshooting SH Error Code of Tekonsha Primus IQ Brake Controller
    The SH error code of the # TK90160 means it's detecting a short. This is going to be on the power cable of the controller which is the black wire.
    view full answer...
  • Are Brake Controller Lights Suppose To Always Be On
    When there is no trailer connected the light on the brake controller # TK90160 will either be flashing or be completely off. If it is a constant red the whole time with no trailer connected, that means that you have something wrong with your ground like a short. This happens when there is corrosion the the pins or corrosion where the wires would attach to the trailer. The screen could also show N.C. for a 15 seconds. Below is a link to help you troubleshoot the brake controller.
    view full answer...
  • What is Power Wheel Used for on Tekonsha Primus Electric Trailer Brake Controller
    The power wheel on the Tekonsha Primus Electric Trailer Brake Controller # TK90160 adjusts the amount of power sent to the trailer brakes. More power (rotating the knob toward the front of the vehicle) will set the brakes more aggressively and the opposite is true when rolling the wheel back toward the rear of the vehicle. You want to set it to a point where just enough power is sent to effectively brake but not lock up the trailer brakes. I have included a link to the installation details...
    view full answer...
  • Troubleshooting Flashing .C with a Tekonsha Primus Brake Controller
    The display .c. indicates that your controller is receiving power, that your trailer is connected, and that the controller's boost feature is engaged. If you are getting this message without a trailer connected to your tow vehicle then what is happening is that there is a load on your brake output circuit (most likely from corrosion on your trailer connector) that is telling your controller it is connected to a trailer. To fix this try cleaning the pins of the 7-way you have on your tow...
    view full answer...
  • Which Direction Does Diode Face for To Prevent Collision System Malfunction 2017 Toyota Highlander
    On the diode that you use there will be an arrow or some other way to indicate which way the current can flow through it. You'll want the diode to allow current to go from your Toyota Highlander to the brake controller and not the other way around. This allows the brake controller to know when the brakes are being applied but doesn't allow the brake controller to apply voltage to the vehicle.
    view full answer...
  • Can Brake Controller Cause ABS and Brake Warning Lights of Tow Vehicle to Come On
    I spoke with my contact at Tekonsha, who tells me that if the brake controller has been properly installed, the brake controller will have nothing whatsoever to do with the ABS system of your vehicle. If the controller was hardwired into the tow vehicle (as opposed to using a plug-in connector) there's a very slight chance that if the red wire from the brake controller could've been tapped into the wrong circuit. The red wire should be tapped into the circuit coming off the brake stoplight...
    view full answer...
  • Primus IQ Brake Controller Numbers Scroll While Driving
    This is a common issue when the brake controller # TK90160 is not mounted level inside the vehicle. The brake controller needs to be level from side to side and can be mounted between zero and ninety degrees vertically. If this doesn't solve your problem the brakes on the trailer might be wearing unevenly or warping causing the brakes to chatter. The brake controller is designed for trailers with electric brakes so it is possible there is an exposed wire causing the wire to ground out while...
    view full answer...
  • Is There a Harness Needed To Install Tekonsha Primus IQ Brake Controller On a 2010 Chevy Silverado
    The Tekonsha Primus IQ Trailer Brake Controller part # TK90160 comes with everything that you need to install on a 2010 Chevrolet Silverado. There would be no extra harness needed as there is actually no plug on the above vehicle but the wires are present so you'd just need to splice these into the controller with the included connectors. The wires under the dash will be labeled for you.
    view full answer...
  • Are Hazard Flasher Immunity And Prolonged Stop Features Available With Brake Controller
    With a brake controller like the Primus IQ, part # TK90160 on your 2011 4Runner, the hazard flasher immunity is no issue since the 4Runner has separate stop and turn signals. I called my contact at Tekonsha and they said there were problems several years ago when flashers were used but it would not be problem with the newer brake controllers. When sitting with your foot on the brake for prolonged periods, the amount of braking current applied will decrease, but as soon as you touch the...
    view full answer...
  • No Trailer Brakes when Stepping on Brake Pedal on a 1998 Land Rover Range Rover
    The problem you are having is definitely on the red wire. If you use the brake pedal and get no trailer braking action then that indicates the connection on the red wire is the issue. Make sure it is securely attached to the brake switch wire. Also, make sure that you have the right wire. You would want to test all of the wires that you can find at the brake switch. The wire needs to have power only when the brake pedal is pressed. If it has power with the headlights or turn signals on...
    view full answer...
  • Troubleshooting Primus Brake Controller Flashing PL Code After Second Use
    The PL error code on the Primus brake controller # TK90160 indicates that power is interrupted when stepping on the brake pedal. Since this is a new controller I would check the wire connections as it sounds like maybe something didn't make a great connection and is now shorting out and causing the weird behavior you described. I attached a help article on troubleshooting brake controller installs for you to check out as well.
    view full answer...
  • How Does Brake Controller Install on a 2016 Chevy Colorado
    I can help you install your Primus brake controller part # TK90160 in your 2016 Chevy Colarado but there isn't a plug in harness available for your truck since there isn't a connector on your truck. On your truck there are 4 blunt cut wires that you would need to wire the controller to. So the good news is that you don't have to buy anything else to install the controller. If you watch the install video I attached you will see the install process walked through on a similar 2015 Colorado...
    view full answer...
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  • Troubleshooting Brake Controller Not Showing Connection on a 2001 Chevy Tahoe
    Under the hood of your 2001 Chevy Tahoe is a few connections that will need to be made in order for the brake output circuit of the 7-way to be connected to the brake controller. If you check out the link I attached you will see an article that will walk you through the process at Step 2.
    view full answer...
  • Troubleshooting Tekonsha Primus IQ Brake Controller that Applies Brakes Hard Initially
    It sounds like the controller isn't mounted as level as it needs to be. The inertia sensor in the Tekonsha Primus IQ part # TK90160 requires the controller to be mounted so that it is completely level from side to side, facing the rear of the vehicle squarely, and really close to level from to back. If these parameters aren't met it will not activate the brakes in a predictable or safe manner. Normally I would recommend checking to make sure the boost feature is off too but you already...
    view full answer...
  • Should Tekonsha Primus Brake Controller Show Output Voltage with Manual Override and No Trailer
    The manual override on a brake controller will send power back along the blue wire with or without a trailer connected. When it does so the display will act accordingly and show the output.
    view full answer...
  • Automatic and Manual Settings On The Tekonsha Primus IQ Brake Controller
    Yes, the Tekonsha Primus # TK90160 has automatic, proportional braking. The trailer brakes are activated when the tow vehicle brakes are activated at the same intensity as the the tow vehicle. The Power Boost settings can be set for towing a variety of trailer weights. The manual override switch is always available for emergency braking when the boost is not activated. The 3 boost settings are for when the trailer weighs the same, 25% more than, 40% more than, or over 40% of the tow...
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  • Brake Controller Trailer Braking Function When Backing Down A Hill
    The Tekonsha Primus IQ Trailer Brake Controller # TK90160 will engage your trailer brakes when you are backing down a hill in proportion to your speed and brake pedal use. If you want more braking since at the reverse speed with a trailer will be minimal, you will want to use the manual override slide on your controller to instantly apply the braking pressure desired.
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  • Where is Trailer Brake Magnet Located
    The trailer brake magnet is located behind the wheel hub/drum assembly. You would need to remove your trailers wheel, then remove the spindle nut from the hub of your trailer, this would allow you to then remove the trailer's hub, and then at the bottom of the brake assembly there would be a magnet. I attached a picture that points out the magnet for you to check out. I also attached a help article on testing brake magnets for you to check out as well.
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  • Installing a Trailer Brake Controller on a 2009 Chevy Silverado
    The video you are referring to, linked to the right for reference, does indeed show a wire bundle with 5 wires. This is normal on a 2009 Chevy Silverado. Brake controllers only use 4 wires. On the truck you will not use the orange wire on to install the brake controller. The brake controller white will go to the truck white wire for ground Brake controller black to truck red for 12 volt power into the controller Brake controller red to truck light blue for input from the brake switch Brake...
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  • Troubleshooting Trailer Brakes That Lock Up When a Brake Controller Isn't Installed
    Sounds like you have some corrosion in the 7-way on your tow vehicle. This is causing your brake light circuit to short out onto your brake output circuit and causing the trailer brakes to lock up. This would also explain the weird readings you are getting with your brake controller when it's not hooked up to a trailer. Look for corrosion on the inside and outside of the connectors, or even cut or exposed wire that runs to the connector and fix as necessary. I attached an FAQ article...
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  • Troubleshooting Error Code S.H. on Tekonsha Primus IQ
    The 5.H, or S.H, code that you are seeing on your Primus IQ # TK90160 means that the brake wire sees a short during idle condition. The short is on the blue wire of the brake controller somewhere between the controller and the trailer connector. Typically it's a bit of corrosion on the inside or the outside of the connector that causes this. But sometimes it can be cut or exposed wire on the circuit as well which you'd need to inspect and fix as needed. I also attached a help article on...
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