Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
Part Numbers: C84VV,C51446
Retail:$157.85
Our Price: $114.39
You Save: $43.46
In Stock
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Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed
part number: C84VV
An easy-to-read digital number display, 10 power levels, and a pinch-trigger manual override make this time-delayed brake controller easy to use. Installation is simple with no mounting restrictions. Activates brakes with a preset intensity.
Features:
- Brake controller activates trailer brakes with preset intensity
- Adjustable power output control lets you select the amount of braking force
- Rocker switches located on left front of module for easy access
- 10 Gain settings and 9 load settings allow you to adapt to various driving conditions
- Select a higher setting for harder braking and lower for more gradual braking
- Pinch-trigger manual override is within easy reach for controlling trailer sway or stopping in emergencies
- Simple LED display shows the amount of power output
- Self-diagnostics monitor trailer connection and check for shorts
- LCD display shows power adjustments in 0.5 increments
- Brightness is adjustable for optimal visibility
- Auto-sleep mode prevents battery drain after 5 minutes of idle time
- Quick and easy installation with no mounting restrictions
- No need to mount level - install anywhere at any angle
- Included mounting bracket and hardware designed to hold the brake controller flush against the dash
- Plug-in, vehicle-specific brake control adapter (sold separately) available for select vehicles to reduce installation time
Specs:
- Application: trailers with up to 4 axles (8 brake assemblies)
- Compatible with low-volt, PWM, ABS, cruise control, and electric-over-hydraulic trailer brakes
- Dimensions: 4" long x 3-1/8" wide x 1" tall
- Limited lifetime warranty
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 orange 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 as a series of bars 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 black 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 Discovery 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.
LED Display
The LED display on the Discovery 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. Press the control button to cycle through the different modes.
Quick Installation
Because inertia plays no role in the functioning of this controller, you do not have to mount the unit at any particular 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.
Time-Delayed Braking
The Curt Discovery comes equipped with time-delayed braking. Every time you apply the brakes in your vehicle, a signal is sent - via the brake switch - to the Discovery. The controller then sends power out to your trailer brakes to activate them with an intensity set by you, at a rate determined by you. Both the amount of braking power (gain) and rate of application (load) can be adjusted to suit your preference, the road conditions, the type of trailer, and the weight of your load. To determine which levels are best for your application, test your towing setup and choose what feels right.
51126 Curt Discovery NEXT Time Delay Trailer Brake Control - 1 to 4 Axles
Replaces Curt 51120
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
part number: C51446
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.
51446 Curt Quick Plug Brake Control Adaptor Harness
California residents: click here
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Defective
- Product did not meet expectations
- Alternate product found
Customer Reviews
Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed - C84VV
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In - C51446
Average Customer Rating: 4.8 out of 5 stars (67 Customer Reviews)
An easy-to-read digital number display, 10 power levels, and a pinch-trigger manual override make this time-delayed brake controller easy to use. Installation is simple with no mounting restrictions. Activates brakes with a preset intensity. 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: John 05/26/2024
JeepGrand Cherokee
Perfect fit for 2024 Jeep Grand Cherokee L.
by: James 12/19/2023
Jeep
Worked perfectly to connect our Curt Brake Controller to our Jeep Grand Cherokee's wiring harness. Nothing to cut or trim.
by: Ozzie L05/22/2024
Easy to install. Looks great and works well. The best part is how discreet it is. Love it.
by: Joshua 09/04/2023
2015 JeepGrand Cherokee
Works as advertised. Used to hook up a triflex brake controller into a 2015 Jeep Grand Cherokee with tow package. Very easy installation.
by: John R05/24/2024
Took about 10 minutes to install. Have not made all the adjustments yet, but is easy to understand.
by: Jerry 04/25/2024
Tested . Work fine and advertised
by: Bill A.04/06/2020
etrailer has great videos for installation and information which works well for your personal application. Cable hidden under dash.
by: Ethan 03/15/2024
excellent service and delivery.
by: Paul 08/29/2022
JeepGrand Cherokee
Definitely a must for installing the Curt Echo under-dash brake controller in a Jeep Grand Cherokee. No wire splicing required; plug-n-play!
by: Victor04/02/2018
2016 JeepGrand Cherokee
Perfect fit for my 2016 Jeep Grand Cherokee. 5 minute installation.
Victor
4/2/2019
Traded the 2016 Grand Cherokee for a 2018, brake controller and wiring adapter fit perfectly again and has been performing flawlessly.
by: vincent .L11/08/2016
JeepGrand Cherokee
GOT MY CURT BRAKE CONTROLLER WITH EASY CONNECT FOR MY JEEP GRAND CHEROKEE ,EASIEST AUTO PART I HAVE EVER HAD TO INSTALL.BUT MY VEHICLE WAS SET UP WITH THE TOW PACKAGE..
by: Everet07/18/2022
Controller worked well. Installation took some effort, but overall was a good piece of hardware.
by: Sidney 09/21/2023
Like its compact size and simple operat ion.
by: Dusten09/21/2023
Very helpful, knowledgeable and friendl y!
by: John06/10/2020
Worked great and installed easy. Especially with the added oem plug kit.
by: Philip05/07/2022
Jeep
Worke great on my Jeep Grand Cherokee
by: Gerard C04/06/2016
All great products and fast shipping. I had a small problem and tech support answered my question immediately. Saved over $250 dollars over dealer prices and with instruction videos installation was a snap. etrailers has become my go to for hitches and accessories.
Thanks, You Guys are the greatest.
by: William E10/04/2020
Worked great. made installation of my brake controller very easy.
by: Dan K.04/03/2014
Shipped same day. Easy to install with the custom wiring adapter. Excellent customer service.
by: Chris 06/27/2022
worked great, made install easy
by: Brian09/20/2022
I’ve bought several items in the last year from etrailer. The service and duality never disappoint!
by: Tommy D.07/19/2013
2004 Hyundai Santa Fe
I have found the products that I ordered have been just what I need, this site is great, the people are very helpful, & know what they are doing, this is the only place that I will shop for my trailer needs,
by: Douglas Fell09/09/2019
This cable worked great. Nothing better than plug and play!
by: Mark R.04/23/2017
perfect fit on both ends.
Mark R.
4/24/2018
every thing is great. works good and i have recommended etrailer.com several times to friends.thank you
by: Martin05/21/2021
Excellent product. Easy to install
25
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Show More Reviews Ask the Experts about this Trailer Brake Controller
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- Wiring Harness to Install Curt Discovery Brake Controller on 2010 Toyota Tundra
- In order to install the Curt Discovery Trailer Brake Controller part # C84VV on a 2010 Toyota Tundra you'll need the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51362.
view full answer... - Wiring Adapter for Curt Brake Controller on 2008 Toyota Tacoma
- If your 2008 Toyota Tacoma has a factory 7-way, the only thing you will need to install the Curt Discovery Trailer Brake Controller # C84VV is the Curt Custom Wiring Adapter # C51362 which will plug into the port underneath the dash of your '08 Tacoma.
If your truck does NOT have the factory 7-way you would need to add 4-way # 118496 along with Universal Installation Kit for Trailer Brake Controller # ETBC7. You will also need to use Universal Wiring Adapter for Curt Trailer Brake Controllers
view full answer... - Brake Controller Adapter Harness For 2022 Ram 1500 For Curt Discovery Brake Controller
- There is; I checked with Curt and verified for you the correct brake controller adapter harness for your 2022 Ram 1500 and the Curt Discovery Trailer Brake Controller # C84VV is the following:
- Curt Custom Wiring Adapter for Trailer Brake Controllers # C51458
view full answer... - Adding a 7-Way Trailer Connector and Brake Controller to a 2004 Nissan Xterra
- I will be happy to clear up what all you will need to add the equipment to tow the trailer and activate the electric brakes.
First, if your 2004 Nissan Xterra does not already have a trailer hitch you will need to add one. A popular option is Curt trailer hitch # 13183. This is a Class III hitch with a 2 inch receiver. The hitch itself is rated for 400 pounds tongue weight and 4,000 pounds gross trailer weight but limited to the vehicle capacity if lower.
I also recommend etrailer
view full answer... - Curt Brake Controller Adapter Harness for a 2020 Jeep Grand Cherokee
- In order to install the Curt Discovery Trailer Brake Controller part # C84VV on a 2020 Jeep Grand Cherokee you will need the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51446 which makes for a plug and play installation.
view full answer... - Curt Brake Controller Wiring Harness for 2018 Ford F-150
- Curt replaced the 51437 with the # C51436 which fits a 2018 Ford F-150 (among other Ford vehicles) and is compatible with the # C84VV Curt Discovery brake controller.
view full answer... - Brake Controller Installation in 2000 Ford F-150 That Had Factory Wiring Removed
- Since your 2000 Ford F-150 came with the wiring under the dash you can install the Curt Discovery # C84VV but I recommend using the Universal Wiring Adapter # C51515 and Butt Connectors # DW05744-5 instead of the Custom Wiring Adapter # C51322.
The universal adapter has blunt cut wires that you'll attach per function (see below) while the custom adapter is designed to connect directly to that connector that was cut off from under your dash. Here are the connections you'll make for the
view full answer... - Troubleshooting Trailer Brake Controller that Only Functions When Engine Isnt Running
- That is an interesting problem you are having, but the problem lies somewhere in the wiring of the brake controller/7-way. The only way a brake controller is going to work properly with the key in the ACC position but not when the vehicle is running has to be due to wiring.
Check to make sure there are no shorts between the two wires you ran to the rear of the 7-way. It sounds like you ran a wire for the 12 volt accessory circuit and an additional wire for the brake output.
You might
view full answer... - How to Wire in a Curt Trailer Brake Controller to a 1999 Ford F-150
- Actually you have a couple of options. First, you could use harness # C51322 in place of the harness for your 1999 Ford F-150. It will plug into the Curt brake controller and the truck. This is the easiest option.
The other option is to cut off the plug on the Curt brake controller # C84VV and hardwire it to the Ford harness. You would have to know the functions of the wires on the Ford harness. It may be labeled or printed on the harness.
If your Ford harness has Red, Light Green,
view full answer... - Affordable Time Delayed Brake Controller w/ Plug and Play Adapter for a 2022 Ram 2500
- The most affordable, time delayed brake controller, with a plug and play adapter is going to be the Curt Discovery item # C84VV.
You will also need the Curt Custom Wiring Adapter item # C51458 to complete your installation. This adapter will allow you to have an easy installation with no cutting or splicing.
view full answer... - Can I Use the Curt Discovery Brake Controller in a 2021 Honda Pilot
- Yes. You could use the Curt Discovery # C84VV on your 2021 Honda Pilot with the plug and play adapter # C51392 to allow for an easier installation that won't require cutting into any wiring. However, the Discovery is a time delayed brake controller, which means that it applied the brakes with the same intensity and with a slight delay in response to the tow vehicle's brakes being pressed. I do typically recommend going with a proportional brake controller, which uses gyroscopes and sensors
view full answer... - Which is Better a Time Delayed or Proportional Brake Controller
- Between the two controller I would go with the proportional Curt Triflex part # C51140 over the time delayed Curt Discovery part # C84VV.
A time delay controller is so named because there is a delay between the time that you initially apply the brakes in your tow vehicle and the time that the controller reaches maximum power output. Unlike a proportional brake controller, which activates your trailer's brakes based on the deceleration of your tow vehicle, a time-delayed controller sends
view full answer... - 2014 Cadillac Escalade Wont Start After Curt Brake Controller Installation
- Thanks so much for the purchase from us of the Curt Discovery Trailer Brake Controller # C84VV for your 2014 Cadillac Escalade, and I'm sorry to hear of this issue you are having. This controller, which you'd use with Wiring Adapter for Curt Trailer Brake Controllers # C51515 assuming the Escalade had a factory 7-way already, should not have anything to do with the vehicle starting or not, which means there was a mistake somewhere along the way with the wiring process.
I have added a
view full answer... - How to Find and Access the Brake Light Switch Wire on a 2015 Toyota Highlander for Brake Controller
- If you check out the video I attached you will see how we installed a brake controller in a very similar 2014 Toyota Highlander as your 2015 model. We had to remove the lower dash panel (13:00 mark of the video), to make accessing the green wire possible.
The kit used for the install in the video is the part # ETBC7.
view full answer... - Brake Controller Install Harness Recommendation for Curt Brake Controller in 2009 Chevy Silverado
- To install the Curt brake controller part # C84VV in your 2009 Chevy Silverado requires the install harness part # C51515 but this is a harness with 4 blunt cut wires that you'd need to wire to the blunt wires under the dash of your truck since a plug and play harness isn't available. It's a pretty simple process though. You'd just need blue butt end connectors like the # DW05744-5 and you'd be set. I attached an install video that shows the install on a similar Silverado for you to check
view full answer... - Troubleshooting Aggressive Trailer Braking with Curt Discovery on a 2018 Chevy Silverado 1500
- Have you tried going different speeds when you are adjusting the power output of the Curt Discovery Trailer Brake Controller # C84VV on your 2018 Chevy Silverado 1500?
If you are only testing it at a slow speed and the brakes on your trailer are already set to be aggressive then it wouldn't take very much for your trailer to brake. Try putting the power output at the lowest setting for the Discovery, test it, and then go to the highest setting and see if that makes a difference.
Let
view full answer... - Troubleshooting Horse Trailer Brakes that Lock Up when Trailer Connector is Connected
- To install the Curt Venturer part # C84VV in your 2016 Nissan Frontier requires the install harness part # C51382 which is a confirmed fit. In a lot of cases the wire colors don't always match up perfectly as sometimes the manufacturers will change wire colors or they use all-together non-standard colors but we know the harness mentioned is the correct one for your Frontier.
Since you have a horse trailer and the brakes are locking up I suspect the issue is related to the trailer connectors.
view full answer... - Does Dealer Need to Turn on Aftermarket Brake Controller in a 2015 Ford F-150?
- There will be no need for you to go to take your 2015 Ford F-150 to the dealer to have them turn on an aftermarket brake controller. The brake controller I recommend that you need only an adapter for is the Curt Discovery # C84VV.
Since you already have the factory tow package, just use the Plug-In Wiring Adapter # C51436.
Plug one side into the brake controller and the other side into the wiring on your F-150 and you are done.
view full answer... - How to Install Curt Discovery Brake Controller in 2008 Ford F-150 With Factory 7-Way
- The Curt Discovery brake controller part # C84VV that you referenced can easily fit your 2008 Ford F-150 with the factory 7-way by using custom install harness part # C51322.
This plugs into the brake controller install port under the dash of your truck and then into the back of the controller and you're set.
view full answer... - Brake Controller Installation on 2011 Toyota Tundra
- If your 2011 Tundra has the factory tow package, which includes the factory installed 7-way trailer connector on the rear bumper, it will be equipped with the tow package plug under the dash, as shown in the photo I've edited for you. Some models with the factory 4-pole (or 4-pin) trailer connector will also have the plug under the dash, you'll need to look for a white plug located above and to the left of the emergency brake pedal, above the toe kick. Occasionally, the plug will be located
view full answer... - Brake Controller Install Harness that Fits 2023 Jeep Grand Cherokee L
- Curt has a brake controller install harness that fits your 2023 Jeep Grand Cherokee L with the part # C51446 which you could use with a Curt brake controller like the Triflex part # C51140. To find the connector in your vehicle you'll need to drop the lower dash panel and then look for the gray connector behind the PCM near where the e-brake pedal is.
view full answer... - Trailer Wiring Harness & Brake Control Wiring for 2016 Jeep Grand Cherokee with/without Tow Package
- If your 2016 Jeep Grand Cherokee does not have a trailer connector at the back but is pre-wired with the factory tow package then you can add a 4- and 7-Way connector using # HM40975-11933. Please note: It may be necessary to see a local Jeep dealer to activate the tow package wiring circuit.
Models that did not come with the factory tow package would need to use # 118727 to add the 4-Way and then # ETBC7 to add the 7-Way.
For a brake controller, if your Jeep did come with the factory
view full answer...
Info for these parts were:
Expert Research:
Michael H
Expert Research:
Jameson C
Video by:
Andrew L
Installed by:
Cole B
Video Edited:
Chris R
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
Test Fit:
Ian F
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Bill A.
4/7/2021
Still like it.