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,C51525
Retail:$158.40
Our Price: $114.36
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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: C51525
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.
51525 Curt Quick Plug Brake Control Adaptor Harness
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 - C51525
Average Customer Rating: 4.8 out of 5 stars (86 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: Thomas03/07/2024
Chevrolet Silverado
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: Brian 04/21/2024
2024 ChevroletSilverado 1500
The combo of the Curt Spectrum brake controller and wiring harness made installation a snap
by: Jon05/31/2024
Having issue with intermittent power.
by: Travis 09/06/2022
2022 Chevrolet Silverado 2500
The wiring adapters worked great. It made installation quick, easy, and clean.
Travis
9/8/2023
The wiring adapter made connecting the trailer brake controller so quick and easy that I dont think I will ever use butt splices again.
Mike L.
11/1/2023
@Travis The custom brake controller adapters like the Curt # C51525 certainly make the brake controller install much quicker and less complicated!
by: John R05/24/2024
Took about 10 minutes to install. Have not made all the adjustments yet, but is easy to understand.
by: Richard 05/30/2024
I like the way it installed
by: Jerry 04/25/2024
Tested . Work fine and advertised
by: Ethan 03/15/2024
excellent service and delivery.
by: Damon 04/09/2024
Makes hookups fast and easy.
by: Andy 02/10/2024
Product was perfect for my use.
by: Adam 02/07/2024
It does what it's supposed to.
by: Floyd 02/07/2024
Fit properly
by: Pamela01/09/2021
We got a new truck and needed to convert our trailer breaking unit to the new truck. I wrote to be sure what I needed, got an answer right away, ordered it, and it was easily installed!
by: Sidney 09/21/2023
Like its compact size and simple operat ion.
by: Dusten09/21/2023
Very helpful, knowledgeable and friendl y!
by: James 09/05/2023
The right part as needed
by: David 05/30/2020
Plug and Play installation with this cable! Thanks!
by: Timothy 09/27/2021
Perfect fit that made it easy to plug in and go
by: Howard03/26/2021
The products are excellent and the installation instructions are very easy to follow. Products are very well made
by: Ron R01/06/2021
Adapter is well worth it! No fussing with the wiring, just plug and go
by: Bobby B09/24/2020
Worked great with the Controller, and was a simple plug and play installation
by: Tom 09/22/2022
Easiest ever!!!
by: Donald09/20/2020
2020ChevroletSilverado 1500
Was just able to install controller, everything went really smooth, works great, thank you for the quick delivery as always.
by: Steve09/13/2021
Easy install with good instructions. Works well!
by: Lewis 10/04/2021
Easy to install.
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- Wiring Adapter for Installing Curt Discovery Brake Controller on 2014 Ford Explorer
- To install the Curt Discovery # C84VV brake controller on your 2014 Explorer, you'll need the Curt wiring adapter, part # C51322.
view full answer... - Comparing Curt TriFlex Trailer Brake Controller To Curt Discovery Trailer Brake Controller.
- The main difference is the Curt TriFlex Trailer Brake Controller # C24VV is a proportional brake controller while the Curt Discovery Trailer Brake Controller # C84VV is a time delay controller. The proportional controller will automatically adjust power sent to your trailer brakes based on how hard you are braking, while the time delay always sends the same force no matter how soft or hard you are braking.
Those with time delay controllers will often have to reach down to crank up the
view full answer... - How to Properly Set Up Curt Discovery Time Delayed Brake Controller
- To properly set up the Curt Discovery brake controller part # C84VV you first need to set the max output setting with the thumbwheel (number 2 in picture) on top of the controller. You want to adjust this to a setting that when you slide the manual override lever (number 4) all the way grabs the brakes as hard as possible right before locking up.
Once that's set the next setting is the sync setting (lever on side number 3) which controls how fast the brake pressure ramps up to full
view full answer... - Compatibility of Curt Discovery Brake Controller With 2010 Chevy Silverado
- Brake controllers are not vehicle specific. The # C84VV Curt Discovery brake controller is compatible with your 2010 Silverado. You'll also need the Universal Curt Brake Controller Pigtail, part # C51515. The pigtail wire will connect directly to the tow package wiring located under the dash between the steering column and the emergency brake pedal. Look for a bundle of wires with a white tag hanging from it. The wires of the pigtail will connect to the tow package wiring as follows:
Red
view full answer... - Will Curt Discovery Brake Controller Work With a 2003 Cadillac Escalade?
- The Curt Discovery Trailer Brake Controller, # C84VV, is a fit on your 2003 Cadillac Escalade, though it will require the use of the Curt Custom Wiring Adapter, # C51352.
This product simply plugs into the port that is located in the junction box that is under your dash to the left of your steering column. The exact spot it plugs in will be on the top row, second slot from the left.
view full answer... - Wiring Harness Needed to Plug Curt Brake Controller into a 2006 Ford F-150
- The Curt brake controller # C84VV can plug directly into your 2006 Ford F-150 using the proper wiring harness, # C51322. This harness is sold separately. I have included a link to a video to the right that shows where the connection point is on your truck. The brake controller and harness are different in the video but they plug into the same place on the truck.
view full answer... - How To Install Curt Discovery C51120 In 2017 Chevrolet Equinox W/ ETBC7
- I would be happy to help!
I looked up your order and it looks like you purchased the following products:
7-way Connector # ETBC7
4-way Connector # C56210
Curt Discovery Trailer Brake Controller # C84VV
Curt Wiring Adapter # C51515
Now it looks like your 2017 Chevrolet Equinox does not have the factory trailer connector. If that is the case then the # C56210 you ordered will not work as it is designed for vehicles with the factory trailer connector. You would need the # C56594
view full answer... - 7-Way Trailer Connector for 2004 Jeep Liberty with 4-Way Connector
- Since your 2004 Jeep Liberty already has a 4-Way you just need to install the Universal Wiring Kit # ETBC7 for a fully functioning 7-Way. This comes with all of the wiring and parts needed to give you 12V power and brake controller power at the rear of your Jeep Liberty. You can use the No-Drill Bracket # C57202 to keep the 7-Way/4-Way connector right by your hitch receiver.
If the brake controller in your truck is integrated or you would rather avoid removing it just to move your boat
view full answer... - Can the Curt Discovery Brake Controller # C51120 be Installed in a 2014 Ram 1500
- I spoke with Curt and they informed me that you can use the Curt Discovery Brake Controller part # C84VV in your 2014 Ram 1500 Laramie as long as you use the install harness part # C51453.
It sounds like someone removed the connector from the end of your brake controller wiring, what you would need to do to wire up your controller to the # C51453 would be to cut off the black connector on the harness and match the wires up color for color.
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... - How to Access Vehicle Brake Light Signal for Trailer Brake Controller Installation
- If your 2005 Toyota Sequoia has a factory-installed 7-way trailer connector you can install the Curt Discovery trailer brake controller # C84VV using only the mating wiring adapter part # C51362.
If it does not then the installation will be hardwired. You can gain access to the vehicle brake light signal, which is what triggers the Discovery controller to generate output voltage for the trailer brakes, either by tapping into brake light wiring or by installing a fuse tap in the brake
view full answer... - Brake Controller Installation 2004 Chevy Avalanche
- Your Avalanche should be prewired for a brake controller. Check the fuse panel in the engine compartment. Remove the outer and the inner fuse box cover, and on the inboard side of the fuse box, you'll see two threaded studs. The stud closest to the rear of the vehicle powers the brake controller, there should be a 30A fuse installed next to it. The stud closest to the front of the vehicle powers the 12V feed to the trailer connector. There should be a 40A fuse installed next to it. If the
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... - Adapter Needed to Install Curt Discovery Electric Brake Controller in 1999 Ford F-350
- To connect the Curt Discovery Electric Brake Controller # C84VV directly to the factory plug under the dash of your 1999 Ford F-350 you need # C51322.
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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... - Troubleshooting Brake Controller that Doesnt have 12 Volts on Red Wire when Brakes are Applied
- The red wire of the controller needs to be showing voltage when you apply the vehicle brakes otherwise the controller is never going to activate when you apply the vehicle brakes.
You need to verify the circuit you are trying to connect that wire to has 12 volts when the brakes are applied. Issue could also be the connection isn't being made completely and you'd just need to make the connection better.
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... - Troubleshooting Brake Controller Install Where Brakes Lock Up As Soon as Brake Pedal is Touched
- Since your controller is not showing a connection and your brakes are locking up anytime the brake pedal is touched that means that instead of having the brake output circuit connected to the trailer brakes (blue wire of controller) you have a stop/turn signal circuit connected to the circuit instead. You can test this pretty easily by turning on either blinker and you should feel the trailer brakes lock up with the blinker getting activated.
Since your brake controller would have been
view full answer... - Will the Curt Custom Brake Controller Adapter # C51322 Work with a 1998 Lincoln Navigator
- The Curt Custom Wiring Adapter, # C51322, was designed to work with the factory brake controller plug on your 1998 Lincoln Navigator. The pin for the red wire coming from the brake controller should mate with the pin for the light green wire on your factory plug. It will be the middle pin and on one side you should have a pin with constant 12 volt power and the pin on the other side should have no power. I have attached a photo that shows the functions of each pin on the custom wiring adapter
view full answer... - Curt Brake Controller and Wiring Harness for a 2015 Ford F-150
- For a Curt Discovery brake controller # C84VV you will need wiring harness # C51436 for your 2015 Ford F-150.
view full answer... - Parts Needed To Install Curt Assure Trailer Brake Controller On a 2024 Chevy Silverado 2500
- The Wiring Adapter # C51525 will allow you to connect the Curt Assure Trailer Brake Controller # C49UR on your 2024 Chevrolet Silverado 2500HD.
view full answer... - Where is the Factory Trailer Brake Controller Port On a 2022 Chevrolet Tahoe
- If your 2022 Chevrolet Tahoe does not have the factory tow package then the plug may not be there. If this is the case you would need to hardwire in a brake controller. If your Tahoe does have the tow package then the plug will be under the dash. The plug will often times be taped together with another harness making it not always apparent that it is the plug you are looking for. You may need to do some searching to find the correct plug.
Currently at this time (2/10/2022) the only adapter
view full answer... - How Would Brake Controller Install in 2021 Chevy Tahoe
- If that part is available it would be through GM only. But you could also bypass needing a connector and just wire what you have found directly to a brake controller like the Brake EVN part # TK63VR instead. For this controller the black wire is the 12 volt power wire, red is stoplight circuit, blue is brake output, and white is ground.
view full answer... - Curt Brake Controller Wiring Plug for a 2021 Chevy Silverado 1500
- Thanks for reaching out, Alan!
In order to install a Curt brake controller to your 2021 Chevy Silverado 1500 you'll need the Adapter # C51525, yes. This will connect under the dash to that larger gray connector you found.
If you don't already have the brake controller then I really like the Curt TriFlex NEXT Trailer Brake Controller # C24VV as it has a proportional operation so the trailer brakes match the time and intensity of your truck braking.
view full answer...
Info for these parts were:
Edited by:
Lindsey S
Expert Research:
Jameson C
Installed by:
Kathleen M
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
Written by:
Ronnie R
Video by:
Jonathan Y
Test Fit:
Matthew B
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Jenny N.
5/31/2024
Jon, what you will want to do is to take a multi-meter like the Item # PT29ZR and ensure you are getting power to your controller. You should be getting 12 volts on the black power wire and when you hit the manual over ride you will get 12v on the blue brake controller wire. If you are not getting full power you will have a loose connection somewhere and you will want to start at your fuse and work forward until you find it.