Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
Part Numbers: C24VV,C51422
Retail:$164.95
Our Price: $135.90
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Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional
part number: C24VV
Simple and compact, this proportional brake controller has an intuitive design that's easy to use. Includes a simple digital display, 10 gain settings, a pinch-trigger manual override, 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
- Simple digital display shows you the braking and sensitivity settings as well as error codes
- Intuitive controls keep settings within easy reach
- 10 Levels of boost let you adjust initial braking power and aggressiveness for smooth, safe braking
- Pinch-trigger manual override allows you to control trailer sway or stop in emergencies
- Triple-axis, motion-sensing accelerometer provides highly responsive, smooth stops
- Automatically increases power when going downhill and decreases when 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 sleep mode after 5 minutes of inactivity
- Keeps trailer brakes from overheating by reducing power output to them during prolonged stops
- Defends brake controller and trailer breakaway systems against shorts
- Prevents positive and negative power reversal with built-in polarity protection
- LED display shows power adjustments in 0.5 increments
- Brightness is adjustable for optimal visibility
- Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
- Automatic leveling lets you mount at any angle
- Mounting bracket and hardware included
- Plug-in, vehicle-specific brake control adapter (sold separately) 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: 4" long x 3-1/8" wide x 1" tall
- Limited lifetime warranty
LED Display
The LED display on the TriFlex is large and easy to read at a glance. It will show you what setting the brake controller is on as well as give you information for troubleshooting. You can adjust the screen brightness or trigger night mode so it won't glare obnoxiously on your dash.
To change any of the settings, press the silver mode button on the front of the brake controller and which mode you are currently on will show on the LED display. When you're on the setting you want to adjust, use the black rocker switch next to the mode button to adjust it up or down.
Gain Adjustment
Gain control lets you set the maximum amount of power that will be applied to your trailer's brakes, adjusting in increments of 0.5. 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. You want to go as high as you can without the trailer brakes locking up. Typically, the gain is only readjusted when you experience changing road conditions or if the weight of your trailer changes. To get more power to your brakes, press the upper rocker switch. To decrease the gain, press the lower switch. When you make your adjustment, the gain setting will show on the LED screen for 10 seconds and then go into sleep mode.
Load Control
Once you have the gain set, you can fine-tune your braking by adjusting the load control on a scale of 1 to 9. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. Load control can get the braking power to your trailer faster and with more intensity so that it doesn't push your tow vehicle forward. If your vehicle takes too long to come to a stop, increase the setting by pressing the upper rocker switch. If it stops too abruptly, decrease the setting by pressing the lower switch. You can alter the setting to suit your driving preferences or to improve handling based on changing road conditions or varied trailer loads.
Pinch-Trigger Manual Override
The TriFlex comes with a easy-to-reach, pinch-trigger manual override, great for stopping sway or controlling your trailer's momentum in emergencies. To engage the manual override, just push in the trigger. 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.
Safety Features
The TriFlex 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 TriFlex will automatically go into sleep mode after 5 minutes of inactivity. Sleep mode will turn off again the moment you press the brake pedal.
Quick Installation
Automatic leveling means you can mount the unit at any angle. Your mounting options are limitless, so long as you can still easily access the controller and the manual override. The included bracket is designed to mount the brake controller flush to the dash so it takes up almost no space at all.
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.
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
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.
Proportional Braking
The Curt TriFlex NEXT 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 TriFlex uses an internal 3-axis accelerometer to sense 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.
51146 Curt Tri-Flex NEXT Proportional Trailer Brake Control
Replaces Curt 51140
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
part number: C51422
Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in port beneath your vehicle's dash.
Features:
- Plug-in wiring adapter allows for quick, simple installation of your electric trailer brake controller
- No cutting or splicing required
- Custom connector end plugs into the built-in port beneath the dash of your vehicle
- Other end plugs into the back of your electric brake controller
- Compatible with time-delayed and proportional brake controllers from Curt
- Brake controller must have built-in plug for adapter to connect - will not work on controllers with pigtail wiring harnesses
- 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. 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. 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.
51422 Curt Quick Plug Brake Control Adaptor Harness
California residents: click here
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Defective
- Wrong item was ordered
- Package not accepted
Customer Reviews
Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional - C24VV
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In - C51422
Average Customer Rating: 4.7 out of 5 stars (68 Customer Reviews)
Simple and compact, this proportional brake controller has an intuitive design that's easy to use. Includes a simple digital display, 10 gain settings, a pinch-trigger manual override, 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 brake controller and then plug the other end into the built-in port beneath your vehicle's dash.by: Loren 05/14/2024
Excellent product, easy installation just as described. Good quality as expected from E trailer.
by: Lee04/22/2024
Arrived as planed and was much smaller then my old clunky one. The custom cable harness was easy to install. Finding a flat spot to mount the controller took the longest to find the perfect spot. I gave a five stars because every was as it said. (Plug and play)
by: Chris03/29/2024
The product I ordered was not available. There was a suggestion for another product, without the full knowledge that there are multiple other products, and I was only given one choice. It is what it is, if I knew of options, I would’ve made a different choice. Not a great company in terms of knowledge and service
by: Adam 02/07/2024
The control works great. The reason for knocking off a star is that the control rattles whenever there is a vibration in the truck. While annoying, it doesn't affect the operation.
by: Dennis 02/11/2024
I have not used this device yet but I have installed it. It looks kool. I hope installation orientation doesn't matter too much.
by: Henry 03/15/2024
The service and speed of delivery has always been great, thank you E Trailer.
by: Thomas 05/19/2024
Excellent product. Easy install. Customer service was exceptional with real-time communications every step of the way. Highly recommend e-trailer for any of your trailering needs.
by: Juan C Garcia07/09/2020
This brake controller adapter harness fit exactly as described.
by: Dan 03/29/2024
Never a problem with etrailer
by: Frank 04/20/2024
Extremely easy to install and small enough to not be in the way. Works great as well….highly recommend.
by: Brandon08/27/2023
2015 Chevrolet Traverse
I have a 2015 Traverse with V92 Factory tow package. All I had to do was plug this controller into the vehicle harness with the supplied plug and wala, everything worked perfect. Amy placed my order and she was very helpful in choosing what controller I wanted. Good Job Amy!
by: Craig 05/14/2024
As advertised- very easy to install!
by: Tom 04/09/2024
Was easy to install and works well.
by: Mickey 04/20/2024
Good ..except for shipping thru mail.
by: Damon 04/09/2024
Couldn’t get any easier to install. Took less than ten minutes.
by: Chris 04/05/2024
Everything got here fast, and looks to be exactly what I need. Thank you!
by: Tim 10/13/2023
Works good, just installed, trailer brakes smooth and as it should.
by: Richard 03/28/2024
I have not installed it yet, but it looks good and thank you for the fair shipping Richard
by: Bill 03/13/2024
Perfect communication and quick deliver y!
by: John 03/13/2024
Great fit works as described
by: Domenico11/29/2023
install is a breeze!
by: David03/14/2018
Made it easy to adapt to the vehicle ha rness.
by: Adam 09/30/2023
Hey guys thanks for all the help.
I submitted a couple of questions that were quickly answered and Jon gave me a couple of suggestions that I did wind up choosing. They even came with detailed directions for my paticular truck.
Thanks again for the awesome service and help
by: Harold 12/16/2023
She was great
by: Cowboy12/20/2016
I haven't installed this yet but it appears to be exactly what I needed. I can always count on Etrailer for my accessories
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Show More Reviews Ask the Experts about this Trailer Brake Controller
Do you have a question about this Trailer Brake Controller?
- Curt Trailer Brake Controller Displays Gibberish when Brake Pedal is Pressed
- The brake controller may be trying to tell you something. Take a look at the picture I have included and if what it is displaying is any of these then it is trying to indicate there is a problem.
It also could be variable voltage on the input (red) wire or the sensors inside are unsure just how much braking is needed. Make sure the controller is not tilted or turned to one side. You also may need to adjust the sensitivity some (see instructions link).
You will also want to make sure
view full answer... - How to Install a Curt TriFlex Brake Controller on a Toyota 2013 RAV4 XLE
- Your Curt Triflex brake controller part # C24VV can easily be wired to your 2013 Toyota RAV4 but it will require you to hardwire most of the connections.
You will need to start with a 4-way (if you do not have one). For that you would want the # 118578.
From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and
view full answer... - Testing the Curt Triflex Brake Controller for Power
- I recommend putting a tester on the 5 o'clock pin of your 7 way connector on your FJ Cruiser. This is the brake controller pin. Hit the manual override and see what your readings are. The Curt TriFlex Trailer Brake Controller - 1 to 4 Axles - Proportional # C24VV is a proportional controller so only the manual override can be tested accurately when still using a multimeter like # PT89ZR.
I've attached a troubleshooting article to assist.
view full answer... - How To Install A Brake Controller On A 2015 Chevrolet Traverse
- In order to install a brake controller like the Curt TriFlex Trailer Brake Controller part # C24VV on your 2015 Chevrolet Traverse, you first want to get a universal wiring harness like the Universal Wiring Adapter for Curt Trailer Brake Controllers part # C51515 and a set of wire connectors such as the Deka Heat Shrink Butt Connector part # DW05744-10.
You can then begin the installation by attaching the wires from the brake controller to the pre-ran wiring harness on your vehicle.
view full answer... - Brake Controller Installation 2016 Toyota Tacoma Without Factory Trailer Connector
- In addition to the brake controller you mentioned, the Curt # C24VV TriFlex and the Universal Wiring Pigtail, part # C51515, you'll also need our brake controller installation kit, part # 5506. The kit includes all the wire, circuit breakers and hardware you'll need to complete your installation.
Start by locating the black and blue wires on your # PK11998 pigtail. The blue wire carries the output from the brake controller. The black wire carries 12-volts from the battery to any trailer
view full answer... - Troubleshooting Curt Triflex Brake Controller With Dashes Displaying
- What is happening with your Curt TriFlex Trailer Brake Controller # C24VV is that you have a poor ground connection most likely. I took a look at the manual for this controller and with your display showing two dashes the issue was either a battery that was not providing enough power - which we know based on the 12 volts you were getting not to be the case - or you had a poor ground, which is the leading cause of all wiring problems. So you need to double and triple check you have a good ground.
view full answer... - Curt TriFlex Brake Controller Output Numbers Jump when Going Over Bumpy Roads
- The Curt Triflex # C24VV does not have a pendulum. That is an older technology that is not used that much any more. But it still could have been caused by the truck bouncing on the road if it was severe enough.
It could also have been an electrical anomaly caused by flex between the truck and trailer connectors or the wiring on the brake magnets moving more than normal from the bouncy road conditions. Make sure the truck and trailer side connectors are clean and free of corrosion inside
view full answer... - Adjusting Brake Controller in 2004 Toyota Tundra Causes Fuse to Blow
- It sounds like there is a short somewhere that is causing the fuse to blow. Which fuse is it meaning what is it for? Is it the fuse just for the brake controller or is it a general tow package fuse?
I would start by checking the trailer connector on your 2004 Toyota Tundra (and the one on the trailer if it happens when towing). Make sure the connectors are clean and free of corrosion inside, where the wires attach, and outside on the pins. Also check as much of the wiring as you can
view full answer... - Brake Controller Install Harness for Installing Curt Triflex in a 2016 Ram 1500
- To install the Curt Triflex brake controller part # C24VV in your 2016 Ram Bighorn 1500 all you need is the correct install harness, part # C51458.
The truck pigtail is right above where your right foot would be covered in a foam tape.
view full answer... - Wiring Adapter to Install Curt TriFlex Trailer Brake Controller C24VV in 2009 GMC Sierra
- You can re-install your Curt TriFlex Trailer Brake Controller # C24VV in your 2009 GMC Sierra by using the matching wiring adapter # C51515. No plug is present under the dash, but the needed wires are already run. You will connect the brake controller wiring from C51515 with the vehicle wiring already present under the dash. Please refer to the linked video.
view full answer... - What Does 1.1 On Display of Curt Triflex Brake Controller Indicate
- That means that your Curt Triflex brake controller part # C24VV is putting out "1.1" braking power to your trailer brakes. That's the initial braking power that applies and then from there it will apply more braking power based on how hard you apply the vehicle brakes as this controller is proportional and is designed to sense the amount of braking that your tow vehicle applies.
view full answer... - Troubleshooting Curt Triflex Brake Controller Displaying Numbers When No Trailer Is Connected
- Your Curt Triflex # C24VV should not display anything but a single dot when the trailer is not connected. You are getting numbers when your apply your brakes because there is a draw on the brake controller output wire. The controller sees that power draw as a trailer being connected. I recommend you clean your trailer connector on your truck as sometimes dirt or corrosion can cause a small draw from the other pin functions. You can use sand paper, steel wool, or even an old toothbrush
view full answer... - Troubleshooting Intermittent Blinking Of L.8 or L.9 On Curt Triflex
- In this case there maybe a loose connection somewhere that is causing the # C24VV to intermittently blink L.8 or L.9 or another possibility is that this unit needs to be reset. To start that process disconnect power from the unit for up to 10 minutes, that will allow the controller to reset its self. After 10 minutes, plug it back in and see if that worked.
If none of the above steps seem to fix your problem then please let me know and I would be happy to help further troubleshoot the
view full answer... - Troubleshooting Brake Controller That Gets Hot and Trailer Brakes that Lock Up
- It does sound like there is a short on your trailer. If the brakes locked up and the brake controller unit got very warm it sounds like there is a short on the trailer's 12V power circuit that is causing the electric brakes to lock up. It is possible for different circuits to become bridged together and your 12V power feed might be getting to the brakes.
First, check the trailer plug inside and out for signs of corrosion. Even slight greenish or whitish discoloration can indicate corrosion.
view full answer... - What Does an OL Error on the Curt Triflex Brake Controller Mean?
- The "OL" error code on the Curt Triflex # C24VV means there is a short in the blue wire output circuit or trailer plug. Basically all you need to do is find the short and repair it. With the noise you are getting at the hitch, I can almost guarantee the short is at or near the 7 Way plug near your hitch.
view full answer... - Correct Brake Controller Plug for Curt Brake Controller on 2013 Dodge Ram
- If you have a Curt trailer brake controller like the Curt TriFlex Trailer Brake Controller part # C24VV then you'll use the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51453 to install this on your 2013 Dodge Ram which offers a direct plug-in installation.
view full answer... - Troubleshooting Curt TriFlex Brake Controller on a 2017 Chevrolet Silverado 2500 With OL Code
- The Curt TriFlex Trailer Brake Controller # C24VV does have a sleep mode that will not have any lights on when the controller is not being used.
It sounds like you have a short somewhere in the brake wire that runs to the 7-way since your controller is trying to calibrate when there is not a trailer connected. That also explains why you are getting the OL afterwards. The short could be inside one of the connectors or the wiring may have chaffed somewhere on its way from the controller
view full answer... - Curt Triflex Brake Controller Displays 05 and Trailer Brakes Not Working with Brake Pedal
- On Curt brake controller # C24VV there is a 20 display so if the display is upside down is would look like 02 or 05. That message either indicates that a trailer is connected and the brakes are activated or, if it is flashing, that means it is in output adjustment mode waiting for the power output to be adjusted. Try adjusting the power to 2.1 to see if it displays 1.2 or 1.5 and if so then the display is showing upside down.
I also recommend cleaning the vehicle and trailer side connectors
view full answer... - Troubleshooting Curt Tri-Flex Brake Controller installed on a 2009 Cheverolet Silverado 1500
- To troubleshoot your Curt Tri-Flex Brake Controller # C24VV, my first recommendation would be to check the brake controller and make sure that it is functioning properly. To do this you will need to use a circuit tester like the # PTW2993 and connect to the blue output wire on the brake controller output. Then step on the brake and make sure that the brake controller is sending signal to your 7-way. Typically, you will want the brake controller to be set to maximum output while testing.
view full answer... - Curt Brake Controller Adapter For 2019 Ford Expedition
- I am happy to help you install the Curt Triflex part # C24VV in your 2019 Ford Expedition with a factory 7-way. I recommend to use Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51436 to install the brake controller. It will plug into a built-in port under the dash of the Ford and the other end plugs into the brake controller to power the brake output circuit on the 7-way to tow a trailer with brakes.
view full answer... - Installing Trailer Brake Controller on 2018 Chevy Traverse
- Based on my research it does look like the 2018 Chevy Traverse is equipped with blunt cut wires beneath the dash for installing a trailer brake controller as part of its standard package. To be certain of this you can visit a local Chevy dealer with your VIN and they will be able to tell you exactly what the vehicle was equipped with at the factory or you can simply check the appropriate location inside the Traverse to see if the wiring is present.
On the 2018 Traverse the blunt cut
view full answer...
Info for these parts were:
Edited by:
Leah B
Written by:
Lindsey S
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
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David
3/14/2019
No issues with the product they are working great. Same as the day I installed them. Took a little time dialing the strength and how quick the brakes come on but overall very happy.