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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.
Features:
Specs:
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.
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.
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.
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.
See etrailer.com's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle
Note: If a custom brake control wiring adapter is not available for your vehicle, one of the following will be required:
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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I went to all my local trailer places, auto parts stores and no one had a clue as to what I needed or how to install a brake controller. U-haul wanted $600 dollars to install a controller.
I visited e-trailer, bought $92, worth of parts, and watched an installation video, and a couple of hours later I was ready to tow.
Easy to install and very affordable.
Quick install works Great
Worked great!
easy to install
Just what the doctor ordered. Thanks
The package arrived on time (actually a day early!). It came with the correct Harness. It was easy to install and is working properly!
Ordered as replacement for one that quit after 18 years. New plugged into existing wiring and even fits in existing mounting bracket. So far so good.
Simple hook-up when using the model specific harness.
Haven't tried it yet but it was very easy to install plug and play if you have tow package already
Such an easy install. The connector for my truck was right by the emergency brake. The custom harness worked like a charm. The length of the harness was just about perfect. I mounted mine right under my start button in a Nissan 25 Frontier. I used two-sided 3M Contruction tape to hold mount up. I used the plastic mount and I like how it snaps in place and has three positionsI used # 8 Tek screws and did not use the screws that came in the package. I think the hardest part was getting the red backing off the double-sided tape. I can see the controller from the driver's seat, and it does not interfere with my right leg and using the gas pedal. I am very happy with my install. I am very happy with the service I received from etrailer. I have had my 25 Nissan Frontier for a month and this is the second time that I ordered from etrailer. Everything was shipped fast and packed very well.
Controller is great, and works very well.
15 minute install
Install was easy
As Advertised, they filled order quickly and shipped it out.
great controlerworks perfect all the time
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