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Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Time Delayed
CURT

Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Time Delayed

Part Number: C94SV
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$99.95
Trailer Brake Controller
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Call etrailer.com at 1-800-940-8924 for expert service. We are your Ford trailer brake controller experts, and offer a great price. etrailer.com carries a complete line of CURT products for your Ford Van 2007. Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Time Delayed part C94SV from CURT can be ordered online at etrailer.com. Complete trailer brake controller installation instructions and technical support.
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  • Reviews (1)
  • Q & A (0)
  • Videos (5)
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CURT Trailer Brake Controller - C94SV

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

This compact brake controller fits nicely in your cab. You can mount it anywhere you like and it's only 1" thick. The LED display is large and bright so it's easy to see, while the large manual override is easy to reach in a pinch.


Features:

  • Time delayed: activates trailer brakes with preset intensity
  • Rocker switches control gain and load settings
    • Gain: adjusts on scale of 0.5 to 9.9
    • Load: adjusts on scale of 1 to 9
  • Large pinch-trigger manual override
    • Easy to reach without taking your eyes off the road
  • LED display is bright, large, and adjustable
    • Displays error messages so you can troubleshoot
    • Shows settings using numbers and letters
    • Adjusts brightness for best visibility
  • Auto-sleep mode activates after 5 minutes to prevent draining the battery
  • No mounting restrictions: install anywhere at any angle
    • Included mounting bracket and hardware hold the unit flush against the dash
  • Custom-fit wiring harness plugs right into your vehicle


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
  • Warranty:
    • Limited lifetime on brake controller
    • Limited 1-year on wiring harness


Gain and Load Adjustment

Curt Discovery NEXT

Gain is the maximum amount of power that will be applied to your trailer's brakes. 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. Use the orange rocker switch to adjust the gain on a scale of 0.5 to 9.9 in increments of 0.5.


Once you have the gain set, you can fine-tune your braking by adjusting the load control on a scale of 1 to 9 using the black rocker switch. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, decrease the setting.


LED Display

The LED display on the Discovery is large and easy to read at a glance. You can adjust the brightness or trigger night mode so it won't glare obnoxiously on your dash. It also will give you clear error messages you can use to troubleshoot.


Curt Discovery NEXT troubleshoot

Installation

Because inertia plays no role in the functioning of this controller, your mounting options are limitless, so long as you can still easily access 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.


The included custom-fit adapter plugs into the port on your vehicle's built-in brake control wiring harness, which you should find beneath your dash, near the center console. Once you're plugged into your factory port, just plug the other end of the adapter into the Discovery. Because there are no wires to connect, installation is not permanent. You can unplug and remove the controller at any time to transfer it to another vehicle or securely stow it away.


Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).


What is Time-Delayed Braking?

what is time-delayed braking

Time-delayed braking means that when you apply the brakes in your vehicle, the controller activates the trailer brakes at a pre-set intensity and rate. 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

51322 Curt Quick Plug Brake Control Adaptor Harness

Installation Details C94SV Installation instructionsAlternate Instructions C94SV Installation instructions

Video of Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Time Delayed

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness: The Breakdown

Hi, everyone, Aidan here with etrailer. Today, we're gonna be taking a look at the Curt Discovery NEXT Brake Controller. This is gonna be a time-delayed brake controller. Let's check it out. When it comes to brake controllers, there's gonna be two options you're probably looking at, time-delayed and proportional. Proportional is gonna be the nicer of the two where if you lightly press your brakes, the brakes in your trailer are also going to be lightly applied.

If you slam on the brakes, the brakes in your trailer are also going to match that proportionally. With a time-delayed brake controller, it's gonna be applied at the same rate every time, so you don't get that fine adjustment. You can still adjust the settings, but it's gonna be the same every time. So if we're rolling up to a stop sign, coming to a very slow and predictable stop, and our gain and sensitivity are set kinda high, it's gonna be applying the brakes pretty hard. Same for if we have those set kind of low and we slam on our brakes on the highway, because someone in front of us stopped, the brakes aren't gonna be applied in a similar fashion.

There is the manual override you can always pinch to apply, but that's just something to know with a time-delayed system like this. Let's talk about those controls. The manual override is a pinch style where I'm pressing the button with my thumb. It's pretty easy to reach from the driver's seat where I've got it all set up. So whenever I'm driving, I feel like if I needed to suddenly reach down and get it, I can find that pretty easily every time, and index my thumb well enough to get a good press.

So good to know for emergency situations where you might need that. Now, there's gonna be two sets of controls here for the gain and the load. The orange buttons are going to adjust our gain or our brake power. You can go anywhere from 0.5 up to 9.9, and this is going to signify the different power levels. So 0.5 is the weakest, and as I go up, it's going to get more and more powerful.

So if I have a heavier trailer that needs more stopping power, I'd set it higher. The next one is going to be our load. This is basically how quickly the brakes are applied, so that can go from 1 to 9. At 1, it's going to be the lowest, and at 9, it's going to be the fastest or the quickest application. So basically, ramping from zero to fully applied where we have that gain set. So for demonstration, I'm just going to put the gain all the way up to max, and I'm gonna hit the brakes. And you'll see, slowly, it'll climb up to where we set it. And if I turn that load down all the way to 1, it's going to climb much slower to that designated power level. So you can fine tune this to your own trailer application, and depending on how heavy of a trailer you have and how good the brakes are, that will determine what you want those set at. But generally, that gain is going to be for the weight of the the trailer, and you can kinda determine the load from there. Now, to give a visual indicator of that gain, we've got our vehicle hooked up to a trailer simulator box. I've got the gain set to the absolute lowest it goes, so that's gonna be the lowest brake power, and you can see where the voltage is reading right now. If I turn the gain up to 5, that's gonna be right in the middle, you'll see that voltage will climb up higher. And then if I turn it up to the max, 9.9, you'll see that climb up even higher. So this is just to give you some visual indication of that different power level of the braking. This is designed to work with trailers up to four axles and will work with PWM, ABS, cruise controller, and electric-over-hydraulic brakes. So keep that in mind as you're picking this out if it's gonna work with your trailer. Up to four axles, I'd say for the most part, you're gonna be totally fine. If you don't need one that can go up to four axles and you like this style, Curt does make a similar version that's up to three axles. So that's something to keep in mind too if you don't need this much. Now, the big advantage to something like this, and something you probably noticed if you're familiar with brake controllers already, is going to be the size. It's a lot smaller and a lot more shallow than the brake controller we pulled out of this 4Runner today. And that's great, because even though it's mounted externally, it's not going to be in the way of your knees as you're getting in and out of the vehicle. And as I'm in a normal driving position, I've got plenty of distance between it and my leg. I don't feel like I'm gonna be hitting it all the time, 'cause it doesn't stick out very far. That's thanks to the very low profile bracket. We've got it mounted up with the included double-sided adhesive, but you can also use the included self-tapping screws. Just know that they're pretty long, and you're gonna have to have clearance behind there. But this will just click into place over that bracket. (bracket clicking) You can hear that snap in, and that's what holds it in. One thing to note is that because it's not inertia based, you can mount this really wherever it fits best, so it doesn't necessarily need to be level or facing any certain direction. Now, the installation can vary depending on your vehicle. I'd say check for what your vehicle has in terms of pigtail adapters. That's what we we're able to do with this option from Curt. We offer this pigtail adapter on our site here at etrailer, and that allows us to just plug directly into the vehicle's prep package for this. So just check to see if your vehicle can do that, because that's definitely going to be the easiest option as far as installation goes, 'cause it just plugs right in and all you have to worry about is mounting up that bracket, and then tucking up that wire loom from the adapter. Something else to note is that that LED readout does have a number of different functions. You can adjust the brightness, there's a day and night mode, but it's also gonna give us readouts for different errors. So if something's maybe not fully connected or something, it will tell us here. Your instructions give you a full list of all the different errors that can occur and short descriptions of what they are. But because its screen gives full text readouts, it's pretty easy to tell what's going on based on what it's showing. Like for example, when we first hooked this up to our simulator box, we didn't have the 7-way plugged in all the way, and it told us it wasn't connected. So we went back there, pushed the plug in the rest of the way, and then it worked properly. So that's going to help with just troubleshooting anything that may be occurring in your setup. For me, I think this is a nice middle ground between having the controls, easy to access, and having that LED readout, so you can see those errors and the power, and just have a little bit more control over it while still staying out of the way and being flushed to the dash. But that was just our look at the Curt Discovery NEXT Brake Controller. Thanks for watching.


Customer Reviews

Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Time Delayed - C94SV

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

This compact brake controller fits nicely in your cab. You can mount it anywhere you like and it's only 1" thick. The LED display is large and bright so it's easy to see, while the large manual override is easy to reach in a pinch.

by:

Everything was as described. Easy easy installation in 10 minutes. Not the top of the line controller but it's all I need. Very fast shipping as well. Couldn't be more happy with etrailer. I will be purchasing my fifth through etrailer soon!



by:

works and easy to install



by:

Great job came on time. Installed easily. Works great. Better still is the service from etrailer. New what I needed for my truck. Deserves repeat business



by:

They are the best at what they do. They found the parts I needed and got them to me the next day. I appreciate the dedication to their customers. This product worked for my 1997 Ford F350 with the factory-installed tow package.



by:

Plugged right in to my expeditions factory plug quick easy install.




by:

Excellent. Perfect fit, exactly what was needed. Connected the Curt C51110 Brake control to factory wiring. Only thing that could make it better is if it came with someone to plug it in for me and save me 10 seconds.



by:

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



by:

PERFECT. The etrailer.com employee (Roger R) that assisted me on my phone in order was fast, and efficient. He looked up my truck (2004 f250 diesel 4x4), and assisted me in ordering the exactly correct harness for my application. Plug and play. Thanks.



by:

Very fast and efficient good luck ordering from them thanks.



by:

We purchased our new Ford Explorer with the towing package but the dealership said it didn't come with a trailer brake controller and nothing was made for our SUV so we would have to get an aftermarket controller and have them run the wiring. After looking online I found a video on etrailer.com and it was just as easy as the video to install, the hardest part was finding the Ford plug under the dash, very happy with this product and ready to haul our RV everywhere.



by:

Made installation in a Land Rover Discovery Sport a breeze! Note: This option isn’t listed on either Curt or eTrailer, but it is absolutely an option if you have the factory installed OEM trailer tow package. Your factory tow package must be dealer activated in your vehicle’s software to use the quick connect harness shown here.

Total plug and play. Zero cutting, splicing or tapping required! Fantastic.

TIP: Select your model year and Land Rover Evoque (Shares the same chassis and tow electrics as the Discovery Sport) if you want the right part numbers for your quick connect options.



by:

Tested . Work fine and advertised



by:

Perfect fit very easy to install



by:

excellent service and delivery.



by:

straight forward install, works as inte nded.



by:

Worked perfectly



by:

Exactly what I ordered and expected.



by:

Wonderful product as well as wonderful customer service



by:

Made installation a snap. Just mount the break controller, plug one end into the vehicle's factory plug and the other end into the break controller.



by:

Plugged right in to my 2003 Ford F-150, and other end into the Curt Venturer brake controller. Worked great.



by:

Nice trailer brake. Works as it should.



by:

Works great in my 2000 f250



by:

This is well worth the money. The cord ends appear to be high quality and fit the wiring connectors on the truck and brake controller perfectly. It makes hooking up your new Curt brake controller as easy as plugging in a cord. The only way to make this any easier is to have someone do it for you. The hardest part of the whole installation was finding the factory connector to plug this cord into. Hint: On my 2004 Ford F150, the brake controller connector was just above the factory diagnostic port underneath the dash.



by:

This cable made the job very easy. took 10 minutes to plug in and mount with Curt Venturer Brake Controller. Very inexpensive solution. This is an old vehicle (2001 Expedition) and didn't want to put a lot of money into a brake controller setup. These parts and directions from the website made it quick, easy and inexpensive. I have not towed with the controller yet.


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  • 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 ball...
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  • Recommended Brake Controller Wiring Harness For 2013 Toyota Tundra
    If 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,...
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  • 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...
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  • 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.
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  • 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...
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  • Troubleshooting "Short" Error Code On Curt Discovery NEXT Trailer Brake Controller C84VV
    Hello Surg. It is definitely odd that you are seeing the "short" error code on the Curt Discovery NEXT Trailer Brake Controller # C84VV, especially since your Tacoma was pre-wired from the factory. Nonetheless, this error code is definitely not normal, and is an indication that something is wrong. The display should show the current gain setting when the manual override is applied. With no trailer connected, the "short" code means that the red wire is connected to ground side of the stoplight...
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  • Which Install Harness for Curt Discovery in 2018 Ram 1500
    To 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.
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  • 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...
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  • 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.
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  • 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, White,...
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  • Hub/Drums and Brake Assemblies for Use with Timbren 3,500 lb Axle Less
    All of the parts you mentioned would work great with each other. You didn't mention the part numbers but I was able to determine what you were looking at based on title. The Timbren kit looks to be the part # TASR35HDS11 Hubs # AKHD-655-6-EZ-K Brake assembly set # 23-458-459 Curt Discovery # C84VV Install Harness # C51459
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  • 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.
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  • 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.
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  • 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.
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  • 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...
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  • 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,...
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  • 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...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Sabrina W
Written by:
Sabrina W
Employee Amanda K
Updated by:
Amanda K

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