Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed
(14 reviews)
Price: $99.95
In Stock
Curt Discovery NEXT Trailer Brake Controller - 1 to 4 Axles - Time Delayed
Item # C84VV
Retail:$131.95
Our Price: $99.95
You Save: 24%
In Stock
- All Info
- Reviews (14)
- Q & A (0)
- Photos
CURT Trailer Brake Controller - C84VV
- Electric
- Electric over Hydraulic
- Time Delayed Controller
- Up to 4 Axles
- CURT
- LCD Display
- Dash Mount
- Under-Dash Box
- Automatic Leveling
- 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.
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
Installation Details
Customer Satisfaction Score:
96% were satisfied with this product
4% 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
Average Customer Rating: 4.6 out of 5 stars (14 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.by: Jerry 04/25/2024
Tested . Work fine and advertised
by: Ethan 03/15/2024
excellent service and delivery.
by: Sidney 09/21/2023
Like its compact size and simple operat ion.
by: Dusten09/21/2023
Very helpful, knowledgeable and friendl y!
by: Gary 02/10/2024
by: Christopher 03/22/2024
by: Thomas 02/14/2024
by: Steve04/19/2024
by: Casey 05/08/2024
by: Joseph 03/23/2024
by: Efrain 02/07/2024
by: Jose 04/05/2024
by: Paul 03/25/2024
by: Justin 03/29/2024
14
14
See what our Experts say about this CURT Trailer Brake Controller
- Which Install Harness for Curt Discovery in 2018 Ram 1500To install the Curt Discovery part # C84VV in your 2018 Ram 1500 all you need is the quick install harness part # C51458 which plugs into the port under your dash for an easy install that doesn't require any hardwiring.
view full answer... - Troubleshooting Horse Trailer Brakes that Lock Up when Trailer Connector is ConnectedTo 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....
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- Recommended Brake Controller Wiring Harness For 2013 Toyota TundraIf your 2013 Toyota Tundra has the factory 7-way installed, the Curt Custom Wiring Adapter, part # C51362 will be what you need to connect the Curt Discovery Trailer Brake Controller, part # C84VV. If you have a 4-way connector installed on your Tundra, part # C51515 is what you need. This harness is used on a vehicle that does not have a factory tow package or on one that has a brake control harness but is not equipped with a plug-in port. If your vehicle doesn't have a factory tow package,...
view full answer... - Brake Stoplamp Switch Wire Color For Brake Controller Install on 2016 Ford F150You'll be looking for a purple and white wire, but if you're wanting to install a brake controller there is a plug and play option that would require no cutting or splicing. If you look at the installation video I've linked for you, you can see that the brake controller connector is located behind the dash, all you'll need is the correct wiring harness to connect the controller and the vehicle and you'll be good to go. If you're using a Curt brake controller like the # C84VV, you would...
view full answer... - Where to Connect the Adapter to Install a Curt Brake Controller in a 2017 Nissan PathfinderTo install a Curt Brake Controller, like the Discovery # C84VV, on your 2017 Nissan Pathfinder you will simply need to plug the Custom Wiring Adapter # C51382 under your dash like you mentioned. I am attaching a video where one of our install guys installed a Tekonsha Prodigy P2 # 90885 in a 2013 Pathfinder using the Tekonsha Wiring Adapter # 3050-P. If you skip to the 2:45 mark you can see where he plugs in the adapter for the Prodigy P2. Your Curt adapter will plug into the same place.
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- Brake Controller Install Parts Needed for 2014 Ford Van without Trailer WiringTo install the Curt brake controller part # C84VV in your 2014 Ford E-350 you will need to install a 4-way with part # 118551 and then use the part # ETBC7 to convert it to a 7-way and install the controller. You are going to have to test all of the wires that lead to the brake pedal switch till you find one that only sees voltage when the brakes are applied.
view full answer... - Wiring Harness to Install Curt Discovery Brake Controller on 2010 Toyota TundraIn 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... - Help! Curt Discovery Trailer Brake Controller # C84VV Only Shows Decimal When Brake is AppliedSince the Curt Discovery Trailer Brake Controller, # C84VV, is still displaying the decimal when the trailer is connected, the controller is not sensing a connection with the trailer brakes. In this case the issue is most likely related to a wiring problem or brake magnet problem. I would start by making sure that there isn't any corrosion in either connector. Next, I recommend using a circuit tester like part # PTW2993, to make sure that you have power on the brake controller output pin...
view full answer... - 2014 Cadillac Escalade Wont Start After Curt Brake Controller InstallationThanks 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 link...
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- Brake Controller Recommendation for a 2005 American Revolution LE MotorhomeI'd be more than happy to help out! I recommend using the Curt Discovery NEXT Trailer Brake Controller # C84VV with the Universal Wiring Adapter # C51515 for your 2005 American Revolution LE motorhome. The Discovery NEXT is a time-delayed controller so it sends pre-determined power back to your trailer brakes instead of activating them proportionally. I couldn't find a pinout or connector style that matches exactly with your motorhome so you'll need to splice in your connections by matching...
view full answer... - Troubleshooting Brake Controller Install Where Brakes Lock Up As Soon as Brake Pedal is TouchedSince 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...
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- Installing A Brake Controller in a 2008 GMC Yukon XL Without Plug and Play Adapter HarnessOn 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... - How to Wire in a Curt Trailer Brake Controller to a 1999 Ford F-150Actually 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, White,...
view full answer... - Troubleshooting Trailer Brakes that Lock Up When Trailer Is ConnectedThere is a short or a mis-wire on the 7-way you installed. It sounds like the 12 volt accessory circuit is shorting out to the brake output circuit which is causing the brakes of the trailer to lock up anytime the 7-way is connected. This is a fairly common issue as wiring up connectors is a bit confusing. Since the controller never senses a connection it sounds like the problem is the circuits just being wired backwards. I attached a chart that has what the 7-way pin out should look like.
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- Installing a Brake Controller in a 2009 Chevy SuburbanThe 2009 Chevy Suburban does not have a port to plug in a brake controller which is the same as the trucks of the same year. But it does have the tow package wire bundle up under the dash, to the left of the steering column, held together with a white tag. Pull the wire bundle out to wire in a brake controller. With Curt brake controller # C84VV you will also need pigtail # C51515. Then you can make the following connections: Vehicle red/black wire to controller black wire for 12 volt...
view full answer... - Troubleshooting Brake Controller that Doesnt have 12 Volts on Red Wire when Brakes are AppliedThe 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... - Troubleshooting a Curt Discovery Brake Controller That Has Jerky Brakes Wes, it could be possible that your brakes are jerky after they are warm because you adjusted them while they were cold. So what you can do recommended to warm the brakes by applying the manual lever for a bit while driving at slow speed; once they're warmed you can adjust them properly. Another possibility is that the delay is set too long on the controller. I'd suggest trying to set the delay to activate sooner and see if that fixes it. If all that does not work, then there could...
view full answer... - Wiring Adapter to Install a Curt Discovery Electric Brake Controller in a 2005 Toyota TundraThe Curt Wiring Adapter # C51362 is what you need to install a Curt Discovery Electric Brake Controller # C84VV in your 2005 Toyota Tundra as long as the truck has a factory 7-way trailer connector.
view full answer... - Troubleshooting Brake Controller that Only Works with Manual Override LeverThis is a fairly common problem and the solution is the red wire of the brake controller. Make sure it is connected to a circuit that only sees voltage when the brakes are applied and none when released. Most likely the connection is the issue and just reconnecting the circuit will cause the controller to work again. You can also check to make sure that the third brake light fuse is in good condition under the hood of the vehicle as well.
view full answer... - Can I Use the Curt Discovery Brake Controller in a 2021 Honda PilotYes. 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 ControllerBetween 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... - Brake Controller For 1993 Dodge Ram TruckTo add a brake controller to your 1993 Dodge Ram truck, a great option is from Curt: - Curt Discovery NEXT Trailer Brake Controller # C84VV I like the # C84VV because it's a no-frills, easy to use, economical option that'll just get the job done - activating your trailer brakes. There are settings for the amount of braking you want, an LED display that shows the power output, and an auto shut-off. So it's really simple but also effective, and the only other thing you will need is the...
view full answer... - 7-Way Trailer Connector for 2004 Jeep Liberty with 4-Way ConnectorSince 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... - Is There an Under-Dash Brake Controller Connection Port on the 2005 Mazda B3000 DS PickupAn under-dash quick-connect brake controller port is not offered by Mazda on their smaller pickups, so your brake controller will require a hard wire installation. You will use the # ETBC7 brake controller installation kit that you referenced. A video and article on installing this kit are included for you. If your truck has a 7-way already you can instead use kit # 5506. If your truck does not already have a 4-pole flat trailer connector at the rear bumper you will also need a wiring...
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Do you have a question about this Trailer Brake Controller?
Info for this part was:
Edited by:
Lindsey S
Video Edited:
Chris R
Installed by:
Michael B
Installed by:
Aidan B
Video by:
Charles A
Written by:
Amanda K
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