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Curt Assure Trailer Brake Controller with Adjustable Screen - 1 to 4 Axles - Proportional
Universal Wiring Adapter for Curt Trailer Brake Controllers

Part Numbers: C49UR,C51515

Retail:$267.95
Our Price: $210.54
You Save: $57.41
Trailer Brake Controller
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Curt Assure Trailer Brake Controller with Adjustable Screen - 1 to 4 Axles - Proportional
part number: C49UR

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:

  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
  • High-quality, 1-1/2" tall, OLED screen displays full-text readouts and tilts so it's easy to see
  • Large, tactile buttons keep your settings within easy reach
    • 9 Levels of boost let you adjust initial braking power and aggressiveness for smooth, safe braking
  • Pressure-sensitive manual override button lets you control trailer sway or stop in emergencies
  • Dynamic power adjustment intuitively gives you the braking output you need
    • Automatically increases power for going downhill and decreases for going uphill
  • Integrated safeguards protect your vehicle, the trailer, and the controller
    • Runs continuous diagnostic checks to alert you to any potential problems
    • Minimizes drain on car battery by entering power conservation mode after 30 minutes of inactivity
    • Keeps trailer brakes from overheating by reducing power output during prolonged stops
    • Defends brake controller and trailer breakaway systems against shorts
    • Prevents positive and negative power reversal with built-in polarity protection
  • Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
  • Sleek, low-profile design makes it easy to tuck the brake controller out of your way
    • 90-Degree vertical mounting range
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake control adapter can be used to reduce installation time on certain vehicles


Specs:

  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
  • Dimensions: 3-7/8" long x 3-1/2" wide x 3/4" tall
    • Height of OLED display: 1-1/2"
  • Mounting range:
    • 90 Degrees vertically
    • 20 Degrees horizontally
  • Limited lifetime warranty


Adjustable, Easy to Read OLED Display

Curt Assure OLED Display

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.


Built-In Controls for Adjustable Power

Curt Assure braking output
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.


Curt Assure braking 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.


Safety Features

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.


Automatic Leveling and Simple Installation

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.


Curt Assure Trailer Brake Controller Mounting and Installation

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.


Proportional Braking

What is proportional Braking

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.



51160 Curt Assure Proportional Trailer Brake Control with Dynamic Screen



Universal Wiring Adapter for Curt Trailer Brake Controllers
part number: C51515

This wiring adapter is designed for vehicles that do not come equipped with a factory brake control wiring harness port. One end plugs into your Curt trailer brake controller while the other end splices into your vehicle's wiring.

Features:

  • Universal wiring adapter eases installation of your electric trailer brake controller
    • No need to wire brake controller directly to your vehicle
  • Wire end splices into your vehicle's wiring
    • Use on a vehicle that does not have a factory tow package or on one that has a brake control harness but is not equipped with a plug-in port
  • Connector end joins with the plug on your electric brake controller
    • Compatible with time-delayed and proportional brake controllers from Curt
    • Simple to plug and unplug control for removal
  • 2' Long, 12-gauge wires have protective covering to deter damage
  • Limited 1-year warranty


Installation of Curt Brake Controller Adapter

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. Usually when this is done, a port is installed at your dash so that you can easily plug in a brake controller. However, if no port is present, you will have to splice into your wiring.


With this universal adapter, you can install your Curt brake controller without having to wire the controller directly to your vehicle. If your vehicle has a factory tow package, just splice the pigtail end of the adapter into your vehicle's factory brake control harness wiring, and then plug the other end of the adapter into the controller. If your vehicle doesn't have a factory tow package, you'll have to hardwire the pigtail end of the adapter into your vehicle's wiring. Because only the adapter is hardwired to your vehicle, you can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.


If your vehicle is not equipped with a factory tow package, you will need to purchase additional equipment to ensure that the signals from your brake controller are sent to your trailer's brakes. We recommend etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).



51515 Curt Universal Quick Plug Brake Control Adaptor Harness with Pigtail

California residents: click here




Customer Satisfaction Score:


Customer Reviews

Curt Assure Trailer Brake Controller with Adjustable Screen - 1 to 4 Axles - Proportional - C49UR

Universal Wiring Adapter for Curt Trailer Brake Controllers - C51515

Average Customer Rating:  4.7 out of 5 stars   (483 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. This wiring adapter is designed for vehicles that do not come equipped with a factory brake control wiring harness port. One end plugs into your Curt trailer brake controller while the other end splices into your vehicle's wiring.

by: Chris 04/25/2024

I needed a trailer brake wire wire harness and connector. David verified the correct parts and I received it in a few days. Thanks



by: RenCan7302/09/2024

Not too difficult to install, but I would recommend using a car lift so you don't have to work from your back (review includes wiring harness and 4-7 Pole Adapter)



by: Tom C.03/10/2014

I have the Dodge Ram Truck 94 model with factory wire 7 connector plug. This is the truck that many people can't find the blue wire under the dash. 94 model didn't come with a factory wire plug under the dash like later models have. I found the wire tape to the main wiring harness about two inches from the fire wall to the right of the emergency brake paddle. This harness worked great



by: Robert 03/24/2024

With the adapter kit, installation was easy. Controller is very responsive when towing.



by: Chad Mc.04/24/2022

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.



by: Frank S02/14/2014

this went into my VW Touareg which requires the relay modification described in the Technical Bulletin. Because ground and +12V is already present in the harness, instead of running additional cables, I soldered the relay right into the cable, making it a clean plug and play setup which is 100% removable. I also bought the VW housing and wire kit to complete the install



by: Mike10/14/2022

Worked perfectly with the Curt Spectrum.



by: Micah07/18/2022

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.



by: Thomas03/07/2024

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.



by: Kent E.06/05/2016

Wiring up a brake controller can be tricky. Routing the wire from the hitch to the firewall and finding the right wire on the brake are the hardest part, but etrailer will do their best to help.

Consider running the wire inside the car along the door bottom just under the carpet. This avoids problems with the tie-wraps under the car -- there just isn't anywhere to tie wrap under the middle of the car. Use "loom clamps" ordered separately to solve this problem, if you go under the car.

To find the right brake wire without cutting insulation, use the fish wire from the hitch install to contact the end of the wire inside the connector (from the back). Then touch the fish wire with the continuity tester and apply the brake pedal. My brake had a four wire connector and I found the right one on the second try.

If you find a hole in the firewall with a rubber plug in it, don't discard the plug. Make a short slice in it with a razor blade and push the wires through. You may have to work the wires around to get them through the carpet. Be patient.

Be sure to watch all the videos and allow plenty of time, taking a break before you tackle the hard parts. Rest assured that doing it yourself is better than allowing UHaul to cut corners and charge you labor. :-)

If you are doing the hitch install and four-wire harness, those are much easier. If you are installing the hitch alone, be sure to have a magnet wand for when you push the bolt up into the frame rail. If I had it to do again, I would use a little electrical tape to hold the bolts down so a slight bump wouldn't knock them up.

Kent E.

1/23/2018

Ive not had any trouble with the hitch or the brake controller. I can tow my tear trailer anywhere I want and the hitch protects my mufflers from damage when I go offroad. Nice extra benefit.



by: Richard08/24/2023

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.



by: Michele04/02/2022

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.



by: BiscuitsNGravy10/21/2013

I own a 2008 Chevy Silverado. I ordered the brake controller - C51515 and the universal wiring adapter on Friday and received it on Tuesday. My friend who is a mechanic installed it in about an hour on Wednesday. I towed my camper trailer to Lincoln, NE (about a 5 hour trip) on Thursday and returned on Sunday. After reading the settings instructions, all stops were made smooth and firm. Etrailer.com was great and the Curt Trailer Brake Controller is excellent!

Biscuitsngravy

10/21/2014

I have enjoyed the use of the electric brake controller. The stops are always safe and smooth. Im glad I got it for my truck and Ive never had a problem with it. I just need to get out and use my camper more! The initial contact with etrailer.com was very favorable and I will do business with them again when I need something for my trailers or tow vehicles.



by: Howard S.04/06/2017

I bought a 7 pin trailer wiring/brake connection for my Dodge pickup. I installed it myself, the instructions were absolutely clear and correct. It was an easy installation. In the year since, I've pulled my trailer (tandem axle, 16') many times. The brakes continue to work perfectly as well as the lights. The connectors are solid, all work just like new. I recommend Etrailer parts and their people 100%!

Howard S.

4/6/2018

Still working great. Not any problems. A great product



by: Kenneth03/21/2024

Worked like they said it would



by: Peter 06/22/2021

This is a "must have" if your vehicle did not come with a "tow package". If your vehicle does have a tow package try to get the correct wiring adapter and you can just plug it in without having to make wiring connections.

Peter

6/23/2022

So far, so good!



by: John 06/13/2023

Great customer service
Quality parts
with excellent communication



by: John 10/11/2022

This was a quick and simple installation. The flat connector cover does not stay on and needs to be redesigned. Does not have enough friction. Generous squirts of Fluid Film keep it from corroding,
The round connector cover is fine.



by: Richard 12/02/2022

I can't tell you how much time you saved me. I need a clean wiring no junk connection you hit it out of the park plug and play wires I love it. And the price was cheaper than the local trailer shop that tried to they would have done it
better I seen their work thank you again for the great service and fast shipping.



by: Bill09/12/2022

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.



by: Anna09/29/2022

I had this professionally installed at the trailer rental place so I can't comment on installation but the technician indicated it was fairly simple. It works great!



by: Tyrone 02/12/2024

Worked great



by: Ronnie07/11/2022

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.



by: Michael11/04/2021

The Curt Spectrum Brake Controller works great for my 2008 Toyota Highlander. I mounted it on the front of the console armrest compartment behind the cup holders (facing forward). I was easily able to route the wiring out the bottom of the console and access the module under the drivers seat (be very careful installing the pins into the clip, they are very fragile). Then I ran the wires under the bottom edge of the console and out through the fire wall (Be very careful drilling your hole through the firewall. I caused some damage I had to have repaired}.
Also, the help I had from Yolanda, making sure the kits I needed were compatible, was extremely important because I was leaving for a cross country trip later that week. She was wonderful and everything worked great for my trip.
Thank you etrailer. I'm a regular customer and will remain so.



by: Michael 09/22/2022

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!


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


  • Parts Needed To Install Curt Assure C49UR In 2008 Nissan Pathfinder Without Factory 7-Way
  • Actually your 2008 Nissan Pathfinder SE does have a factory trailer brake controller port underneath the dash even though it did not come with a factory 7-way connector. To install the Curt Assure Trailer Brake Controller # C49UR you were looking at you will just need to use the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51382. I included videos for both of the products mentioned for you to take a look at.
    view full answer...

  • Parts Needed To Install Curt Assure Trailer Brake Controller In 2007 Chevy Silverado 2500HD Classic
  • I have another option for you, but your 2007 Chevrolet Silverado 2500HD Classic has a factory trailer brake controller port so there is no need to cut any wires. To replace your current controller with the Curt Assure Trailer Brake Controller with Dynamic Screen - 1 to 4 Axles - Proportional # C49UR you will just need the # C51352 which will plug into the factory trailer brake controller port underneath the dash of your truck. I included video reviews for both of the products mentioned
    view full answer...

  • Parts Needed to Install Curt Assure Brake Controller In 2002 Ford F-350
  • To install the Curt Assure brake controller part # C49UR in your 2002 Ford F-350 all you need is the install harness part # C51322 and you'd be set.
    view full answer...

  • Brake Controller Installation on 2001 Ford E350 Van
  • Brake controllers like the # C49UR Curt Assure aren't a vehicle-specific item. You can install a brake controller on just about any vehicle. What the installation will involve will depend on whether your E350 is equipped with a trailer connector and what type it is. If you have the factory 7-way trailer connector, it'll be a plug-and-play installation using the # C51322 brake controller harness. The harness plugs in to the connector under the dash near the e-brake pedal (see provided
    view full answer...

  • Parts Needed to Install Curt C49UR Assure Brake Controller on 2021 Chevy Silverado
  • To install the # C49UR Curt Assure brake controller in a 2021 Chevy Silverado, in addition to the controller you'll also need a # C51525 brake controller wiring harness. The harness plugs in to the connector located under the dash just left of the steering column next to the e-brake pedal as shown in the provided photo. I've linked to a demonstration video showing how the brake controller works.
    view full answer...

  • Can the Curt Assure Trailer Brake Controller Be Mounted Vertically
  • The Curt Assure Trailer Brake Controller part # C49UR must be mounted in a certain orientation in order for the inertia sensor to work properly. I have attached a photo below with the mounting orientation required which comes directly from the install instructions. It cannot be mounted vertically as you can see.
    view full answer...

  • Installation of Curt Assure Brake Controller on 2002 Toyota 4Runner
  • We have only had the chance to install the Curt Assure Brake Controller # C49UR on a Dodge Ram which can be seen in the video below. For your 2002 Toyota 4Runner the installation will require hardwiring since there is no factory tow port. As long as you have a 7-way on the vehicle this can be done. If you don't have a 7-way you will need to add one. Start by adding a 4-way with the # 118341. Once this is installed, or if you have the factory 4-way, you will need to add the # ETBC7.
    view full answer...

  • Best Brake Controller for a 2006 Dodge Ram 2500
  • The Curt Assure Trailer Brake Controller with Dynamic Screen item # C49UR, you were looking at, would be a great brake controller for your 2006 Dodge Ram 2500. It is a proportional brake controller designed for use with electric or electric-over-hydraulic trailer brakes. If your Dodge Ram came with a 7-way connector or a 4-way connector then you will want the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In item # C51332. This adapter plugs into a port behind your
    view full answer...

  • Will Curt Assure Brake Controller Be Smoother than Escort Brake Controller
  • The Curt Assure brake controller part # C49UR when properly set up will be incredibly smooth unlike what you have now. This controller has an inertia sensor that can tell how hard you are applying the vehicle brakes and applies a proportionate amount of braking pressure on the trailer brakes. To install it in your 2012 Toyota Tacoma you'd just need the install harness part # C51362 which plugs in under the dash.
    view full answer...

  • Replacing Tekonsha Brake Controller For a Curt Brake Controller in 2009 Dodge Ram 3500
  • The Curt Assure Trailer Brake Controller with Dynamic Screen # C49UR will require a Curt Custom Wiring Adapter # C51332 to connect to your 2009 Dodge Ram 3500 that has a factory plug in connector. Another option is to use a Curt Wiring Adapter for Cequent Trailer Brake Controller Wiring Harnesses # C51520 to adapt the Tekonsha harness to plug into the curt. This will work best if your harness is difficult to get to or your wiring is hardwired and you do not want to have to remake the
    view full answer...

  • How Does Curt Assure Brake Controller Install in 2022 Chevy Tahoe
  • To install the Curt Assure brake controller part # C49UR in your 2022 Chevy Tahoe would only require the install harness part # C51525 which plugs right in under the dash. The Assure is Curt's answer to the P3 part # 90195 as it has a full screen that uses full words instead of codes to decipher that is also proportional.
    view full answer...

  • Can 2006 Ford F-350 with Integrated Brake Controller be Bypassed with Aftermarket
  • I spoke with my contact at Tekonsha and he stated that there are two ways that you can install an aftermarket brake controller in a 2006 Ford F-350 with an integrated brake controller. The first way is to hardwire in the controller. The white wire goes to the negative battery terminal, the black wire to the positive battery terminal via a 20 or 30 amp circuit breaker, # 9506P. The red wire connects to the circuit on the brake switch that shows a signal on a circuit tester like, # PTW2993,
    view full answer...

  • Troubleshooting Curt Assure Trailer Brake Controller C49UR Not Going Into Standby/Sleep Mode
  • I am sorry to hear your Curt Assure Trailer Brake Controller with Dynamic Screen - 1 to 4 Axles - Proportional # C49UR in your 2006 Toyota Sequoia is not going into standby/sleep mode. I recommend using a circuit tester # PTW2993 to test the factory trailer brake controller harness and making sure that the stop light switch pin only comes on when you have the brake pedal pressed, and that you have one pin with constant 12v power. If this is the case, then the issue is within the Curt
    view full answer...

  • Is There Plug on 2022 Chevy Tahoe to Install Brake Controller
  • Since your 2022 Chevy Tahoe has factory brake controller wiring and not a port to plug a connector into you'd only need a brake controller like the Curt Assure Trailer Brake Controller # C49UR that you referenced and you'd just need to wire the controller directly to the vehicle's wiring and you'd be set.
    view full answer...

  • Parts Needed to Install Curt Assure Brake Controller on 2005 Toyota Sequoia w/ Tow Package
  • For your 2005 Toyota Sequoia with the factory tow package you just need the controller and wiring adapter: - Curt Assure Trailer Brake Controller # C49UR - Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51362
    view full answer...

  • Quick Connect Brake Control Harness for 2020 Jeep Wrangler JL
  • Curt doesn't offer a plug-and-play harness for the 2020 Jeep Wrangler with the tow package, but I DO have a solution for you. You'll need to use the Tekonsha version of the harness, part # 3073-P. Cut off the black connector on the # 3073-P harness, and cut off the black connector on the Curt # C49UR Assure brake controller, and wire the controller to the harness, color for color. You'll still retain the quick disconnect function. The # 3073-P harness plugs into the factory connector
    view full answer...

  • Wiring Harness to Install Curt Assure Brake Controller in 2021 Chevy Silverado 1500
  • To install the Curt Assure brake controller part # C49UR in your 2021 Chevy Silverado 1500 the correct install harness is the # C51525.
    view full answer...

  • Install Harness for Curt Brake Controller Installed on 2014 Toyota Tundra
  • To install a Curt brake controller like the Assure part # C49UR in your 2014 Toyota Tundra the correct install harness would be the part # C51362. I checked with them and was not able to find a different harness they recommended.
    view full answer...

  • Is There a Plug-In Brake Controller Wiring Harness for 2022 GMC Savana 3500
  • I do have an option for you but there is no brake controller port under the dash on a 2022 GMC Savana 3500. That said, the wires you need to splice into should be taped and tucked under the driver side floor mat up towards the firewall. I recommend the Curt Assure Trailer Brake Controller part # C49UR with the Universal Wiring Adapter for Curt Trailer Brake Controllers part # C51515. If you want to use the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885, you wouldn't need an
    view full answer...

  • Parts Needed To Install A Brake Controller In A 2012 Toyota Sienna LE
  • Hi Bryan, It looks like the Sienna doesn't come with a plug-and-play connector for wiring in a brake controller so you will have to do a bit of splicing but it's honestly a lot easier than you'd think. In order to tow a trailer with electric brakes you'll need a 7-way connector on the Sienna first. I'll start from the base and work forward, if you have some of these items then you can just skip those steps: Assuming you have nothing wiring-wise you'll want a 4-pole wire harness like the
    view full answer...

  • Installation of Curt Brake Controller on 2009 GMC Sierra 1500
  • When it comes to installing a brake controller like the Curt # C51170 using the adapter # C51515, the color of the wiring isn't always a reliable way to determine the functioning of a wire, so you'll likely want to test the functions using a circuit tester like the # PTW2993. In some cases the colors will match up, but it's not always the case. As long as you're able to match up the correct wires under the dash to the adapter, you'll be able to use the brake controller without issue. We
    view full answer...

  • What Size Wire Connectors For Installing Brake Controller on 2018 GMC Canyon/Chevy Colorado
  • In order to install the Curt # C51170 Spectrum brake ocntroller on your 2018 Canyon, you'll need 2 of the 14-16 gauge butt connectors like what's provided with part # DW05744-5, and two 10-12 gauge connectors like what comes with the # DW05745-5. I've linked to a video showing a brake controller being installed on 2008 Chevy Colorado.
    view full answer...

  • Wiring Adapter for Curt Electric Brake Controller on 2016 Toyota Tacoma
  • We do offer the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515. This adapter will connect with the plug on the back of the Curt electric brake controller on one end and the other end will allow you to hardwire install the brake controller. If you need to add a 7-Way to your tow vehicle, the # C51515 adapter will work well with the Universal Installation Kit for Electric Trailer Brake Controller # ETBC7. The instructions for this hardwire installation are linked
    view full answer...

  • When Does Brake Output Circuit of Vehicle 7-Way Have Voltage
  • The brake output circuit on a 7-way (5:00 pin) will only have as much voltage on it as the brake controller is sending. Typically this going to depend on the amount of gain selected on the controller and other factors like brake controller style and ramp up speed of the controller. The only time the circuit would have voltage without the brake pedal being applied would be if you had the manual override lever of the controller slid. I attached a couple help articles on brake controllers
    view full answer...

  • Brake Control Harness # 51515 Installation Process in 2008 and 2013 Chevrolet Silverados
  • The Curt Brake Controller Harness you referenced, part # C51515, can be used for both the 2008 and 2013 model years of the Chevrolet Silverado since it is a universal-fit harness. For your 2013 Silverado you will want to follow the procedure outlined in the linked article. Please refer to the photo provided which shows the vehicle tow package wiring that can be found under the dash. You will connect these wires to the leads on the Curt harness as per the article, using butt connectors
    view full answer...

  • Parts Needed to Add Brake Controller to 2022 Ford Edge ST
  • While I can understand not wanting to splice any wiring, you'll have to do so to add a brake controller to your 2022 Ford Edge ST, as there isn't a plug-and-play brake controller option. So what you'll need are the following for the wiring: - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118805 - Universal Installation Kit for Trailer Brake Controller # ETBC7 You will first install the 4-flat, which will activate your trailer's lighting functions, and you'll
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  • 7-Way Installation Kit to Install Curt TriFlex Brake Controller in 2017 Audi Q5
  • So far so good but you need one more thing in order to install the Curt TriFlex Trailer Brake Controller # C24VV with Adapter # C51515 in your 2017 Audi Q5. Now that you have the 4-way # 119250KIT installed you will need to add the Universal Installation Kit for Trailer Brake Controller # ETBC7. This is going to give you the 7-way connector, circuit breakers and rest of the hardware needed to complete your brake controller installation. I have added links to a pair of help articles for
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  • Troubleshooting Curt Brake Controller Installation in 2007 GMC Sierra New Body Style
  • First I suggest making sure you are testing the brake circuit pin on your Sierra's 7-way trailer socket. If you refer to the linked photo of a trailer connector you will note the brake controller's output is carried on the pin at the 5:00 position; the ground is at the 7:00 position. If you happened to test the 12V auxiliary power circuit, carried on the pin at the 2:00 position, it will have power at all times. I see that you purchased Curt Universal Wiring Adapter # C51515 which
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  • What is Needed to Use Trailer Brake Controller on 2014 Toyota Highlander
  • Yes, and to use a brake controller on your 2014 Toyota Highlander you'll need a 7-way, which is what provides the power to the brake controller. First, you'll need a 4-flat, which will activate your trailer's lighting functions, and you'll then plug that into the 7-way. The correct parts are the following: - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217 - Universal Installation Kit for Trailer Brake Controller - 7-Way RV # ETBC7 - Curt Assure
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  • Custom Wiring Adapter for 2012 Chevy Silverado Curt Brake Controller
  • If you are looking for the custom adapter for the Curt Reflex Trailer Brake Controller # C51130, you will need the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515. Unfortunately, no factory plug is present under the dash on your truck, but the needed wires are already run. You will connect the brake controller wiring with the vehicle wiring already present under the dash. It is a two foot long wire. These are twelve gauge wires with a protective coating to prevent
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  • Removing Lower Panel of 2019 GMC Canyon to Install Curt Spectrum Brake Controller
  • Thank you so much for your purchase from etrailer of the Curt Spectrum Trailer Brake Controller # C51170. We appreciate that, and in order to remove the front panel, you literally just have to remove the screws and work the panel out to remove it. If you go to about the 10:10 mark of the video I linked below you can see how our installer did this. The video is on a Chevy Colorado but it will be the same for your truck.
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  • Brake Controller Recommendation for a 2012 Mercedes GL450
  • In order to install a trailer brake controller on your 2012 Mercedes GL450 it will require hardwiring in the controller unless the Mercedes dealer has a wiring harness specific for a brake controller and your vehicle. If they do then you will need to wire in the controller to the Mercedes harness by function. On a brake controller, the wire functions are as follows: White is ground Black is 12 volt power Blue is output to the trailer brakes Red is input from the brake switch On
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  • Brake Controller & How to Determine Tow Capacity of 2016 GMC Yukon XL Denali AWD
  • I Googled the owners manual for a 2016 GMC Yukon XL Denali and it stated that the towing capacity will depend on a couple factors. So in order to determine the towing capacity you have to know if you have a long or short wheelbase, as well as your axle ratio. An axle ratio of 3.08 will be 6,000 or 6,300 lbs while a 3.42 axle ratio will be 8,000 or 8,200 lbs depending on your wheelbase. When towing a trailer that large it will have electric brakes so you'll need a brake controller, and
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  • Brake Controller For 1993 Dodge Ram Truck
  • To add a brake controller to your 1993 Dodge Ram truck, a great option is from Curt: - Curt Discovery NEXT Trailer Brake Controller # C84VV I like the # C84VV because it's a no-frills, easy to use, economical option that'll just get the job done - activating your trailer brakes. There are settings for the amount of braking you want, an LED display that shows the power output, and an auto shut-off. So it's really simple but also effective, and the only other thing you will need
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  • Curt Wiring Adapter For A Brake Controller Compatible With Vehicles Without A Factory Wiring Plug
  • Yes we do, The Universal Wiring Adapter for Curt Trailer Brake Controllers, part # C51515, is designed to work with Curt Trailer Brake Controllers on vehicles without a factory brake control wiring harness. These wires will have to be spliced into your vehicle's existing wiring, so there should be no issue with your 2004 Toyota Tacoma. I have included a product description link, a video installation link, and a video review link below.
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  • How to Install the Curt Wiring adapter # C51515 on a 2008 Chevrolet Silverado
  • To install the Curt Wiring adapter # C51515 in your 2008 Chevrolet Silverado you will need to hardwire it under the dash. To be sure that the wire bundle you found under the dash is the correct set of wires I would check the white tag for any indication as to what each wire is for. If none of them have labeling then it would be best to test their functions with a circuit tester like part # PTW2979. You will then connect the following wires from the Curt adapter to the following functions: Blue
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  • Troubleshooting Brake Controller Not Allowing Truck To Start
  • For your 2014 Chevy Suburban, no plug is present under the dash, but the needed wires are already run. You will connect the brake controller wiring with the vehicle wiring already present under the dash using the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515. It seems the 2007 to 2013 brake controller wiring was carried over into 2014 for your vehicle. I've attached and article to assist. The issue you are experiencing is most likely because you have a plug
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  • Troubleshooting Curt Venturer Brake Controller Installed on 2011 Dodge Ram 1500 Pickup
  • Getting a single green LED on the display indicates that there's no trailer connected. Since you're getting this with the trailer connected, it would seem to indicate that the brake controller isn't 'reading' the trailer for some reason. The most common reason for this to happen would be a dirty, corroded or damaged connector on the vehicle or the trailer. Examine the trailer connectors, and ensure everything is clean. If you see any white or green corrosion on the pins or sockets of the
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  • Adapter for Curt Venture Brake Controller on VW Touareg
  • In order to use the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515 with your Curt Venturer # C74VV brake controller, you will need additional parts from your Volkswagen dealer. Please see the attached help article on installing a brake controller in 2005 and up Volkswagen Touareg's. It states in part: "To install a brake control on a 2005-current Volkswagen Touareg or Porsche Cayenne using the factory brake control connector, you will need to assemble a brake control
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  • Brake Controller for a 1989 Chevrolet C/K Series Pickup
  • I would be happy to help you find a brake controller for your 1989 C/K Series Pickup. I recommend the Curt TriFlex Trailer Brake Controller item # C24VV. This is a proportional brake controller that works with trailers having up to four axles. It works with electric and electric over hydraulic trailer brakes. The nine sensitivity settings let you adjust initial braking power and aggressiveness. You will also need the Universal Wiring Adapter for Curt Trailer Brake Controllers item # C51515
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Info for these parts were:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Andrew K
Video by:
Andrew K
Employee Joshua S
Video by:
Joshua S
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Nicholas E
Test Fit:
Nicholas E
Employee Shane T
Test Fit:
Shane T
Employee Brent H
Test Fit:
Brent H
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Andrew L
Video Edited:
Andrew L
Employee Dustin K
Video Edited:
Dustin K
Employee Sue W
Video Edited:
Sue W
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

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