Part Numbers: C49UR,C51382
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This sleek, low-profile proportional brake controller will fit easily into your cab. A large, high-quality OLED screen with full-text readouts is easy to see. Includes 9 sensitivity settings and built-in safety features.
Features:
Specs:
The high-quality OLED display on this brake controller makes the screen easy to read at a glance. The text is large and you can tilt the screen to the angle that makes it easy for you to see. Instead of displaying codes that you have to look up, this display shows full-text descriptions of errors so you can quickly address any problems that come up.
Braking Output: Braking output is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. Use the + and - buttons to set the output. You want to set the braking output as high as you can without locking up the brakes. Once you've set up the brake controller the first time, you shouldn't need to adjust this setting unless the trailer load changes, you switch trailers, or road conditions change. The OLED display will show the current output setting being used.
Sensitivity: Once you have the output set, you can fine-tune the power by adjusting the sensitivity of the internal sensor. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the set output 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. The sensitivity setting gets the braking power to your trailer brakes faster and with more intensity so that it doesn't push your tow vehicle forward.
There are 9 sensitivity levels (boost levels), with 1 being the least sensitive. At level 9, the sensitivity of the internal sensor is as high as it can go. Press both buttons at once to switch into the sensitivity mode and adjust to the level you need for smooth, safe braking. When you change the setting, the display on the Assure will flash the level before reverting back to showing the power output.
Manual Control: The manual override button on the Curt Assure is pressure sensitive for precise braking power. When you press the button, the trailer's brakes will be activated with the same amount of force, without activating the brakes on your tow vehicle. This is great for stopping sway or controlling your trailer's momentum in emergencies. The braking intensity will be indicated on the OLED display when you press this button.
The Assure offers key safety features to prevent damage to various components of your towing setup. This starts with built-in protection against shorts and positive and negative power reversal, as well as continous diagnostic checks to alert you to any potential problems as they come up. To minimize the drain on your vehicle's battery, the controller will automatically go into power-saving mode when not in use. This feature will turn on after 30 minutes of inactivity and turn off again the moment you press the brake pedal.
Another great way that the Assure protects the longevity of your setup is a hold feature that saves wear on your brakes. When you're waiting at a red light, you don't need your trailer brakes on at full power. The longer you sit there, the more they will overheat. But with the Assure, any time your tow vehicle and trailer are at a standstill for a prolonged period of time, the controller will reduce the power output to the brakes. This will keep your trailer in place while saving your brakes.
The self-leveling feature of the Assure ensures that the brake controller continues to function even as you drive up steep hills or through the mountains. Simply mount it in your cab at a vertical angle within 90 degrees, and the controller will level itself automatically. This makes the installation that much easier. But keep in mind that the Assure must be horizontally level and parallel with the direction of travel to work correctly.
Installation is a snap. If your vehicle already has a plug-in brake controller wiring harness, just connect the unit to it. Otherwise, you will need to purchase a vehicle-specific wiring harness (sold separately) to plug into. If a harness is unavailable for your vehicle, hardwiring will be necessary.
Installation Accessories
See also etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.
Note: If a custom brake control wiring adapter is not available for your vehicle, either a 20-amp or 30-amp circuit breaker (sold separately) may be required for installation.
The Curt Assure 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 Assure 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.
Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your controller and then plug the other end into the built-in port beneath your vehicle's dash.
Features:
Note: The factory brake controller plug on certain Nissan Titan XE models has a pin configuration that does not match up with this adapter plug. To install this adapter in those vehicles, hardwiring is required.
To install your Curt electric brake controller, you need to connect the wiring of the controller to your vehicle. Certain auto manufacturers offer pre-wired options, typically known as tow packages, wherein wiring is run for you from the dash to the trailer connector on the back of your vehicle. When this is done, a port is installed at your dash so that you can easily plug in a brake controller.
This adapter plugs into the port on your vehicle's built-in brake control wiring harness. The harness is located underneath the dash, to the left of the steering column, and it is taped to another harness near the emergency brake pedal.
No hardwiring is required to install this adapter in most vehicles. After you plug it into the factory port, you simply plug the other end of the adapter directly into your electric trailer brake controller. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.
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Average Customer Rating: 4.8 out of 5 stars (234 Customer Reviews)
This sleek, low-profile proportional brake controller will fit easily into your cab. A large, high-quality OLED screen with full-text readouts is easy to see. Includes 9 sensitivity settings and built-in safety features. Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your controller and then plug the other end into the built-in port beneath your vehicle's dash.The Curt Echo is now on my Nissan Armada and works perfectly. It was an easy hookup with the supplied harness and does its job.
I installed the Curt C51110 controller with the Plug & Play C51382 into my 2016 Frontier, works perfectly.
I've had the brake controller in use for over a year in my 2012 Nissan Frontier. The install was easy and took about an hour. My truck is a 2WD model so I mounted the controller in the plug that is used to select between 2WD and 4WD on vehicles equipped with 4WD. So the install look like factory.
Simple connection. FYI: On the 22-24 Nissan Frontier the plug-in is left of your left knee, above the kick panel. It is the larger of the 2 white connectors. No need to take kick panel off.
With the adapter kit, installation was easy. Controller is very responsive when towing.
The resources at etrailer.com made my purchase easy. By having specific truck lookup ,correct wite adapter and specific product videos. Looking forward to my first trip with curt assure brake controller.
exactly product, fits perfect in my Nissan Pathfinder platinum 2014
2006 Dodge Ram. Easy install. Plug it in and tie up the wires. I put a wire protector sleeve to cover the wires coming out of the controller.
This custom wiring adapter made hooking up my Curt controller very easy to my factory wired nissan frontier.
This is used on a 2020 Chevy Silverado 1500 pulling a 16' enclosed cargo trailer. With the appropriate adaptor cable it was very easy to install, just plug in and mount in a convenient spot. Once installed it was simple to get it matched to the weight and brake setup of the trailer. Close to 6k miles with it so far & very happy.
Good prices and selection but the shipping was pretty slow. Almost had to go buy a cheap brake controller to get my towing job done. I'd buy from etrailer again without hesitation assuming I didn't need it right away.
it worked as it was designed to
VERY easy install. As mentioned in other reviews the hardest part is finding the factory plug in for a 2017 Tacoma. Toyota tucked it way in the back behind a wire bundle. Picture attached for reference.
Great customer service
Quality parts with excellent communication
For the most part I have been very happy with the merchandise that I have ordered from etrailer. But right now, I think that the people pulling the orders have to slow down a little and look closer at the details. I had ordered a C51382 cable but was sent a C51362 cable. They are not inter-changeable. They are shipping a new cable today (Tue.) I am supposed to get it by Thursday, depending on what time it gets here I may be able to get it done Thursday night and then calibrate the brake controller. Otherwise I am supposed to be on the road Friday but first I will have to take care of this and calibrating the brake controller on top of everything else.
Jenny N.
12/1/2021
I will have our customer service team reach out to you.
The directions on this item are horrible. I finally figured it out and was able to install it onto my Ram 1500, but only after spending hours trying to make everything fit right. If you're looking for a hitch setup to pull a trailer long distances, I would advise you to look at other options. This will work for my short trips with my half-ton pickup, but I would not want to pull anything more than 50 miles with this setup.
So much easier than cutting wires and crimping butt splices. Plus it make un-installation easier and doesn't void the warranty for the brake controller. the time saved was worth the money for me.
Bri
6/7/2017
One year later and unlike my guitar hero drum kit the insulation on the wires has not cracked and fallen off yet. Plus its nice to be able to unplug the unit from the car.
Controller worked great. Stops smoothly and properly. The only problem is when I disconnect the trailer the display continues to say there’s a problem and won’t stop until I unplug it. Called technical for help and he said there’s a short somewhere but I haven’t found any short or cause.
Noah A did a fantastic job of making sure I had the right product and referred me to their video library for installation instructions. Absolutely a fantastic representative of this company 5 out of 5 stars for sure. Good follow up as well!
Your company is awesome! I can’t write about the brake controller because my mechanic is putting it on today and it is the one he recommended. What I can write about is the customer service. You made ordering simple and the follow-up is fantastic. Delivery was quick and there were no delays. I will use your company again — and again. Thank you…
Qaulity product and easy installation. Fast shipping.
I ordered this wiring harness because it said it would work with my 2004 Nissan
Titan. It does not. The plug on one end of the harness matches none of the plugs on the truck wiring.
Laura E.
11/8/2017
Thanks for pointing this out, Russell. The factory brake controller plug on some vehicles primarily XE models do not have the 4 pins to match up with the adapter plug. The factory plug will need to be hardwired onto the brake controller adapter that was purchased.
The product worked great, but I am annoyed because etrailer wouldn't take it back even though I hadn't used it.
Awesome company. Install was simple and delivery was as fast as I ever had. Highly recommended them.
Worked great. Exactly what I needed to hook up my brake controller on my 2018 Nissan Armada
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Kenny
9/6/2017
ITS BEEN A YEAR SINCE INSTALLATION, ITS BEEN IN THE SAME LOCATION, HAVENT HAD ANY PROBLEMS! GREAT PRODUCT, GREAT PRICE!