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  1. Trailer Brake Controller
  2. Dodge
  3. Dakota
  4. 2004
  5. CURT
Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed

Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed

Item # C84VV
Retail:$131.95
Our Price: $99.95
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Call etrailer.com at 1-800-940-8924 for expert service. We are your Dodge trailer brake controller experts, and offer a great price. etrailer.com carries a complete line of CURT products for your Dodge Dakota 2004. Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed part C84VV from CURT can be ordered online at etrailer.com. Complete trailer brake controller installation instructions and technical support.
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  • Reviews (16)
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CURT Trailer Brake Controller - C84VV

  • Electric
  • Electric over Hydraulic
  • Up to 4 Axles
  • Time Delayed Controller
  • CURT
  • Under-Dash Box
  • Dash Mount
  • Automatic Leveling
  • LCD Display
  • Up to 360 Degrees

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.


Curt Discovery NEXT

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

what is 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

Installation Details C84VV Installation instructions

Customer Satisfaction Score:


Customer Reviews

Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed - C84VV

Average Customer Rating:  4.7 out of 5 stars   (16 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.

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Took about 10 minutes to install. Have not made all the adjustments yet, but is easy to understand.



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Tested . Work fine and advertised



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excellent service and delivery.



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Like its compact size and simple operat ion.



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Very helpful, knowledgeable and friendl y!



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See what our Experts say about this CURT Trailer Brake Controller

  • Recommended Trailer Hitch, Wiring and Brake Controller for 1994 Chevy C/K Series Cab and Chassis
    The Draw-Tite Class V hitch, part # 41947 will most likely work for you. The hitch has a drop (distance from the bottom of the frame to the top of the receiver tube) that's adjustable to 6-5/8, 8-1/4 or 10-1/4 inches. One of these distances should allow your receiver tube to clear the bottom of the back bumper, but you'll want to measure the distance from the underside of the frame member to the lowest point of the rear bumper. For wiring, you'd begin with a 4 pole, provided by # 118315....
    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. Without the harness the controller can be installed but it would need to be hardwired into the truck.
    view full answer...
  • Does 2019 Ram 1500 Need to be Flashed Using Curt Discovery Brake Controller
    Thank you for your purchase from etrailer of the Curt Discovery Brake Controller # C84VV and Wiring Adapter # C51458, we appreciate it. Your 2019 Ram 1500's computer does not need to be flashed/programmed when using this controller it will be plug and play. The exception is if you are replacing the factory brake controller, as you would then need to do so.
    view full answer...
  • Installing A Brake Controller in a 2008 GMC Yukon XL Without Plug and Play Adapter Harness
    On your 2008 GMC Yukon XL, there is not a direct plug and play harness for a brake controller. This is because no plug is present under the dash, however the needed wires are already run so it is a simple install. You will connect the brake controller wiring with the vehicle wiring already present under the dash with butt connectors like # 05731-5. The Curt Discovery Timed Delay Brake Controller # C84VV gives you the option to either cut the connector off the brake controller or use...
    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...
  • Troubleshooting Curt Discovery Trailer Brake Controller # C84VV Installed in 2002 Chevrolet Tahoe
    Thank you for your recent purchases from etrailer. I would like to suggest some additional testing before you return the Curt Discovery Trailer Brake Controller # C84VV. This will help isolate the problem and confirm whether the unit is indeed defective. The code OL indicates that the controller has sensed an overload condition. Disconnect the trailer from the Tahoe. Apply your grounded tester to the pins at the 5-o-clock and 7-o-clock positions on the Tahoe 7-way, as shown on the linked...
    view full answer...
    Image 1 for
  • 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...
    Image 1 for
  • 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...
  • 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...
  • Can Curt Discovery NEXT Brake Controller Install in 2018 Ram 1500
    So long as you do NOT have the factory brake controller your 2018 Ram 1500 can install the Curt Discovery NEXT Trailer Brake Controller # C84VV with the Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51458.
    view full answer...
  • Turn Signals Work But Brake Lights Do Not Light Up
    You came from a brake controller page when you asked the question. Is this issue related to the installation of the brake controller? Or are we just talking about brake lights on a trailer or vehicle? If it is on the trailer then usually there is a bad ground connection since the brake lights draw more constant power than the turn signals. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached...
    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...
  • Brake Controller Wiring Adapter for a 2015 Toyota Tacoma with Factory 7-Way
    No worries, the 5-wire harness will work just fine because the extra connection is for the illumination circuit and it's not needed. The Curt Discovery trailer brake controller # C84VV is a fit for your 2015 Toyota Tacoma and the direct fit pig tail adapter # C51362 you referenced is correct. You will simply plug the adapter # C51362 into your factory brake controller tow port and route the pigtail to the location of your choice so you can connect your brake controller.
    view full answer...
    Image 1 for
  • Plug And Play Brake Controller on 2009 Toyota Tacoma With Factory 7-Way
    I assume your 2009 Toyota Tacoma with the factory tow package has the factory 7-way. If it does, then yes, a brake controller installation will be completely plug-and-play. For this the brake controller and wiring adapter a great option is the Curt Discovery NEXT Trailer Brake Controller # C84VV with Plug-In Adapter # C51362.
    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...
    Image 1 for
  • Can Curt Discovery Brake Controller be Installed 2015 Hyundai Santa Fe
    Yes, you can install the Curt Discovery brake controller part # C84VV in your 2015 Hyundai Santa Fe. You will also need the harness part # C51515 to give you 4 wires to then wire to your vehicle. You will need to start with a 4-way (if you do not have one). For that you would want the # C56332. 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.
    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 light...
    view full answer...
  • Curt Brake Controller, Wiring Harness 1999 F-350 Super Crew
    The Curt brake controller # C84VV can plug directly into your 1999 F-350 Super Crew 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 on a similar 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 Does Brake Controller Install in 2012 Ford F-150
    When installing the Curt Discover part # C84VV with the harness for your 2012 Ford F-150, part # C51436 all you'd have to do is plug in the controller and harness and you'd be set if you have the factory 7-way like it sounds like you do. It's really a pretty simple install. Otherwise you'd need a 4-way to 7-way adapter like part # 37185 and you'd have to run the wire from the truck's frame rail to the adapter and you'd be set. See attached picture for more info on that.
    view full answer...
    Image 1 for
  • How Can I Tell if My 2013 Nissan Pathfinder Came With Factory Tow Package
    All 2013 Nissan Pathfinders came pre-wired for a tow package, so we know your Pathfinder at least has something. If your Pathfinder came with the tow package option from the dealer, then you would have a trailer hitch and trailer wiring at the back of the Pathfinder. Since you are asking for a wiring kit, I'm guessing you need the wiring still. For this I recommend the Curt 7-Way Wiring Harness, # C56357, if you want a 7-pin trailer connector or the Curt 4-Way Wiring Harness, # C56281,...
    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 instead....
    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...
  • 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...
  • Curt Brake Controller Wiring Pigtail for 2013 Jeep Wrangler Unlimited
    The correct pigtail wiring harness for installing a Curt Discovery Trailer Brake Controller # C84VV in your 2013 Jeep Wrangler Unlimited is part # C51515.
    view full answer...


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Do you have a question about this Trailer Brake Controller?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Chris R
Video Edited:
Chris R
Employee Michael B
Installed by:
Michael B
Employee Aidan B
Installed by:
Aidan B
Employee Charles A
Video by:
Charles A
Employee Amanda K
Written by:
Amanda K
Employee Ian F
Test Fit:
Ian F

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