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Curt Echo Under-Dash Bluetooth Brake Controller w/ OneControl App - Up to 4 Axles - Proportional
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

Part Numbers: C27JR,C51322

$371.23
Retail:$442.33
You Save: $71.10
Trailer Brake Controller

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Curt Echo Under-Dash Bluetooth Brake Controller w/ OneControl App - Up to 4 Axles - Proportional
part number: C27JR

Towing? There's an app for that. This brake controller connects to your phone with Bluetooth so all your settings are right in your hand. The plug-and-play unit mounts under your dashboard, out of sight and out of your way.

Features:

  • Proportional braking - Smooth, safe, and good for your brakes long-term
  • Bluetooth - Control your settings from your smartphone using the OneControl app
  • Hidden - Installs out of sight behind the dashboard
  • Great for a fleet - Swaps easily between multiple tow vehicles and trailers
  • Simple troubleshooting - Diagnostic LEDs are displayed on the main unit
  • Safe for your car - Built-in reverse polarity and short circuit protection
  • Universal wiring harness - Hardwires to your vehicle
  • Install kit included - Mounting adhesive, zip ties, instructions, and quick reference guide


Specs:

  • Application: trailers with 1 to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
    • Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
  • Main unit dimensions: 3-3/8" long x 3" wide x 7/8" thick
  • Smart device OS requirements:
    • Apple: 5.0 and newer
    • Android: 4.3 and newer
  • Limited lifetime warranty


Pair with other OneControl systems for convenient control of your trailer in one app!

  • True Course (C94VV - sold separately) prevents sway
  • Tire Linc (C54VV - sold separately) monitors tire pressure and temperatue

Quick Tip: The Bluetooth PIN for initially pairing to your smart device is located in the quick reference guide!


Note: If Bluetooth connection is lost, the brake controller will continue to function safely, using the most recently programmed settings. This brake controller is not compatible, but will not interfere, with Apple CarPlay or Android Auto.


The Curt Echo under-dash is all about convenience. With the main unit mounted out of sight beneath the dash, all you need is your smartphone to control the settings on the brake controller. You won't have to worry about banging your knee on a bulky controller, cluttering up your dash, or ruining the sleek look of your interior.


Towing with Your Smartphone and an App

The Echo is unique for giving you control of your towing through your smartphone. You can set the maximum braking output, adjust the braking sensitivity, apply the manual override - all from the OneControl app.


The Echo connects to the app via Bluetooth. You can save multiple trailer profiles in the app, a big plus if you have a fleet and want to be able to just select a pre-set configuration and get towing. And don't worry: after you've downloaded the app, you don't need to have data on to use the app with the brake controller. You'll be able to receive calls and texts and access your other apps.


OneControl App

Simple, intuitive, and user-friendly, the OneControl App makes it wicked easy to manage your settings and control your trailer.


how does the One Control app work

1. Manual Override

This big orange button in the middle of the app is your manual override. Press and hold the button, and the brake controller will smoothly apply the trailer brakes without applying your vehicle's brakes. This is perfect for stopping sway or controlling your trailer's momentum in an emergency.


Curt Echo Under-Dash App Manual Override Button

Quick tip: Put manual override right at your fingertips by adding this button (C83HR - sold separately) to your dash. The app must be running for the button to work, but it can be in the background while you use other apps on your phone. The button has an adhesive back and runs on a replaceable battery.


2. Brake Output Indicator

The outer ring gives you a visual indicator of how much power is being applied to the trailer brakes. This is determined by your max output setting.


3. Max Output

Braking output 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.


To set your maximum braking output, tap this button and increase or decrease using the + and - buttons. You want to set the braking output as high as you can without locking up the brakes.


4. Sensitivity Level

This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the max output level. This is a great adjustment to make when you're towing a heavy load and the trailer will need more umph to bring it to a stop so it doesn't push your vehicle forward.


Just like max output, if you need to change your sensitivity level, use the + and - buttons. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, lower the setting. You may also need to adjust the sensitivity based on your own preferences, or when the trailer load or road conditions change.


5. Vehicle Hazard Lights

If you turn on your vehicle's hazard lights, there's a chance the trailer brakes will pulse on and off as the lights flash. Turn this setting on any time you activate your hazard lights to prevent this problem.


Save Multiple Trailer Profiles

Curt Echo App saves multiple trailer profiles

Get on the road faster by saving your settings. With the app, you can add and store multiple profiles for both trailers and vehicles so that your preferred settings will be ready to go as soon as you hook up. This is perfect if you own a fleet and don't want to have to reset the controller every time you swap out trailers. You'll have the ideal settings saved and waiting for you. To switch between profiles, just swipe left or right.


OneControl: One-Stop App for Towing

If you like the idea of monitoring your trailer from your phone, the other OneControl systems could be a great fit for you.


The Curt True Course (C94VV - sold separately) is an advanced Bluetooth sway control system that automatically triggers the trailer brakes (independent of the vehicle's brakes and the brake controller) when it detects dangerous trailer movement. The Curt Tire Linc (C54VV - sold separately) Bluetooth TPMS monitors the temperature and pressure of your trailer tires. All of these systems use the OneControl app so you can manage all of them in the same place on your phone.


Plug-and-Play Installation

You won't be dinging your knee on a bulky brake controller or interfering with your vehicle's lower airbags because the main unit mounts out of sight under your dash. This product comes with an adhesive pad and 4 zip ties to make it easy to mount anywhere. (Just don't zip-tie the box to wiring or cables that can shift as you drive!) Thanks to the 3-axis accelerometer, the main unit can be positioned at any angle. No matter how you install it, the unit will sense the direction of travel and deliver smooth, even braking.


Curt Echo Under-Dash Main Unit Module

The easiest way to install this brake controller is to get a custom, vehicle-specific adapter (sold separately) that plugs right into both your vehicle and the main unit - no hardwiring required. Otherwise you'll have to get a univeral harness and potentially splice into your wiring.


Note: If a custom brake control wiring adapter is not available for your vehicle, a 30-amp circuit breaker (sold separately) may be required for installation.


That done, download the OneControl app on your Apple or Android smartphone and wirelessly pair the unit to your phone via Bluetooth, following the in-app instructions. It should take about 5 seconds for them to pair. Once paired, the LED light on the unit will turn a solid blue. Plug in your trailer's 7-way and let the whole system calibrate for another 5 seconds. When the LED turns green, configure your desired trailer brake settings and save it as a profile. Then you're ready to tow!


Curt Echo Under-Dash LED Troubleshoot Cheat Sheet

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 controller installation kit (ETBC7 - sold separately).


What is Proportional Braking?

What is proportional Braking

Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes hard; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Echo under-dash uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to ensure that your trailer slows at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



51190 Curt Echo Wireless Trailer Brake Controller - Under Dash - Smart Phone Bluetooth Connection - One Control App for Brake Controller - 1 to 4 Axles - Proportional

California residents: click here



Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
part number: C51322

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. For most applications, this harness is located beneath the dash, near the center console.


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.



51322 Curt Quick Plug Brake Control Adaptor Harness

California residents: click here




Customer Satisfaction Score:

Ratings & Reviews

4.7

338 reviews
Towing? There's an app for that. This brake controller connects to your phone with Bluetooth so all your settings are right in your hand. The plug-and-play unit mounts under your dashboard, out of sight and out of your way. 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: Christopher04/29/2025

The Curt wiring adapter was fine, however our coach was not wired with a plug in the harness, so installation required a little wiring work to complete. No big issue, the product was great



by: Matthew 11/25/2023

The break controller worked seamlessly. Profiles are easy to set up and it has very reliable Bluetooth connectivity with my phone. Installation was really easy on my Honda Pilot!



by: Michael06/26/2025

Don’t even know it’s there, set it and forget it.



by: Robert06/30/2025

Easy to install. Very happy withth it.



by: Derek06/25/2025

Easy install.



by: JimB 08/26/2024

This is my first proportional brake controller. Stopping is much smoother without sacrificing safety. Communication by bluetooth makes for a clean installation.



by: Alan03/12/2024

Do not buy either the Curt Under-Dash or plug-in Wireless brake controllers until Lippert fixes the phone app. I’ve used both happily with the old ECHO Smart Control app. I could use the remote manual button with the phone app not even running. As one would reasonably expect the button talked to the controller directly via Bluetooth. The new OneControl Auto app must be running and in the foreground to use the manual remote! And the most recent version of ECHO Smart Control is non-functional, it just tells you to install OneControl Auto.



by: Eric P. Foxboro,MA07/16/2017

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: Dave K / NHS08/28/2017

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: David04/17/2024

The Curt Echo is now on my Nissan Armada and works perfectly. It was an easy hookup with the supplied harness and does its job.



by: James 12/19/2023

This was relatively easy to install under the dash of our 2021 Jeep Grand Cherokee, especially since ours has the factory Trailer Tow Package and therefore an existing pigtail connector ready to connect to the brake controller. The Curt wiring adapter made it super easy to connect the Brake Controller to the vehicle's wiring harness. The controller was easy to calibrate and worked seamlessly while we're towing a rented trailer. We used a dedicated (older) cell phone to operate it while we're towing to avoid any potential interference from other apps rather than using our regular phone on which we receive phone calls texts, etc. This was our first time towing a trailer and this easy-to-use Brake Controller helped make us feel safe and comfortable. Highly recommended.



by: Nicholas06/27/2018

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




by: Stephen 10/16/2024

Outstanding service and a quality produ ct!



by: Stephen 10/16/2024

Outstanding service and a quality produ ct!



by: Charles 09/25/2024

works and easy to install



by: mike R.07/29/2013

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.

Mike R. profile picture

Mike R.

1/28/2015

The products worked great up until about a few weeks ago Thats when I sold the truck where the items were installed. lol. Really though, I very much liked how the products listed and purchased from etrailer.com were easy to find, fit exactly as described, and performed as needed. etrailer.com is always one of the first places I look when searching for items for my new truck.



by: Garth 02/23/2024
1997 Ford F-350 Super Duty

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: Nicholas08/01/2019

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.

Nicholas profile picture

Nicholas

8/3/2020

Still working great



by: RMT05/20/2014
2003 Ford F-150

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

Rmt profile picture

Rmt

5/20/2015

so far so good. no issues.



by: Paul08/29/2022

I was looking for a trailer brake controller that did not require a permanent mounting to the dash or center console of my 2020 Jeep Grand Cherokee Trailhawk. I initially considered the wireless bluetooth controller from Curt Echo that plugs directly into the 7-pin outlet next to the tow hitch. However, reviews from individuals that tow RV trailers identified that particular option prevents the 12v battery on the trailer from charging off of the TV while connected. This would limit the RV utilization during long trips involving boondocking.
The Curt Echo under-dash controller seems to solve that problem and uses the same user interface as the Curt Echo.
Easy to install and operate; problem solved!



by: Joe04/13/2021

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: Earl 08/21/2023

Needed a brake controller I could rely on because I was pulling my camper to a site at the top of a 25% grade within a few days. Unit plugged right into the harness for the factory brake controller (with the adapter cable) on my 2014 Ford F-150,and worked perfectly. Bluetooth connectivity works through the app (rather than through the phone's "settings" icon),and connects instantly. I'm very pleased with this product.



by: Kbrown06/17/2017
Land Rover LR4

Installed it on my LR-4. The dual axle Alum Trailer (Aluma) works great so far! Only a few Land Rover dealerships will install the trailer Brake system. Trailer dealers want touch Land Rovers?? That's why 4 stars. $350 to get it installed!! LR Fort Worth,Texas



by: Jesse 12/18/2023

Worked great. Helped me to trace down a wiring issue with my wiring on the truck and then worked perfectly and controlled some of the heavier loads and was easy to use.


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Ask the Experts about this Trailer Brake Controller
Do you have a question about this Trailer Brake Controller?


  • Wiring Brake Controller to Under Dash Wiring of 2021 Ford Ranger
  • We had the chance to install a brake controller in a similar Ranger as your 2021 model and when using standard brake controller wiring like with the # C51515 to install the Curt Echo Mobile # C27JR the yellow/orange goes to the black wire, the blue wire is going to go to the blue wire, the white wire is going to go to the white wire, and the violet with white stripe goes to the red wire.
    view full answer...

  • Location of Brake Controller Port on 2023 Jeep Grand Cherokee 4xe
  • Hi Robert; it looks like your 2023 Jeep Grand Cherokee 4xe doesn't have a brake controller port since you don't have the tow package. This means hard wiring the # C27JR is your only option for installation. If have a plug and play wiring harness I would return it to whoever you bought it from.
    view full answer...

  • Easiest Plug and Play Brake Controller For a 2024 Jeep Grand Cherokee
  • The Curt Echo Under-Dash Bluetooth Brake Controller # C27JR will provide you with one of the easiest installations as the Pigtail # C51446 will connect it to your factory wiring. And unlike other controllers there is no dash mounted controller or knob so everything simply gets secured under your dash. Then you will control the settings for it with your smart phone using the OneControl app.
    view full answer...

  • Curt Echo Says Trailer 7-Way Disconnected But it Isn't
  • Generally when the Curt Echo Under-Dash # C27JR says the 7-way is disconnected but it isn't, the issue is actually the 7-way is problematic, either on your vehicle or trailer. I'd check to make sure the 7-way on both does not have bent pins, or corroded or damaged in some way.
    view full answer...

  • Will Curt Echo Under-Dash Bluetooth Brake Controller Fit on a 2018 Toyota Tundra?
  • Hey Brian, thanks for reaching out! The Curt Echo Under-Dash Bluetooth Brake Controller # C27JR is a plug and play installation via the Wiring Adapter # C51455. The "play" part kind of depends on what your 2018 Toyota Tundra is equipped with. If you have the factory 7-Way then you're good to go. If you have the factory 4-Way then you need the Hopkins # 37185, and if you don't have any factory wiring at the back of your truck you need the Wiring # ETBC7 kit. Let me know if you have any
    view full answer...

  • 2023 Honda Passport Brake Controller Recommendation That's Easy to Install
  • I highly recommend going with the Curt Echo Under-Dash # C27JR for your 2023 Honda Passport since it installs with the Custom Wiring Adapter # C51392 under your dash and then you use an app on your phone to monitor and adjust your trailer brakes. I also recommend picking up the Manual Override Button # C83HR so you can tow your trailer phone-free and still maintain access to the manual override function of the controller in the event of an emergency. Attached are some review videos
    view full answer...

  • Recommended Trailer Hitch, Wiring, And Brake Controller For A 2019 Ford F-150 XLT
  • Some models have a plug-in port to easily wire in a brake controller, but there isn't a way for us to know if the specific one you're looking at has this connection available without physically searching for it in the vehicle. "Tow Mode" on the shifter only affects the shift point for the engine to help protect it while towing and wouldn't activate the brakes on the trailer. If you really don't have a factory 4-way or 7-way connector at the back of the truck then you'll need to splice
    view full answer...

  • 2023 Ram 1500 Classic Trailer Brake Controller Recommendation
  • Both the 2023 Ram 1500 and the 2023 Ram 1500 Classic use the same brake controller wiring adapter so for this circumstance you definitely can look through either fitguide, but there are other products that specific fits so I don't recommend making it a habit. Out of the available options I recommend the following: - Curt Echo Under-Dash # C27JR - Custom Wiring Adapter # C51458 With this system you'll monitor and adjust your trailer brake settings with an app on your phone but
    view full answer...

  • Brake Controller For a 2021 Jeep Grand Cherokee Summit Completely Hidden Under the Dash
  • It sounds like the Curt Echo Under-Dash Bluetooth Brake Controller # C27JR is exactly what you are looking for. You will need the Wiring Adapter # C51446 to connect to the factory connector under your dash for a plug and play installation. You will control the Curt Echo from your smartphone using the Curt Echo app while the main unit is mounted behind your dash. This means no controllers on the dash or holes to drill in your dash.
    view full answer...

  • Will Curt Echo Under-Dash Brake Controller Work with Factory Tow Package on a 2022 Ram 1500 Rebel
  • The Curt Echo Under-Dash Wireless Brake Controller # C27JR and Wiring Adapter # C51458 will work great on your 2022 Ram 1500 Rebel since it has the factory tow package but no factory controller! I really like this controller since it's inside the cab so you don't have to remember to grab it prior to towing, but it's also out of the way and doesn't take up any space inside the cab.
    view full answer...

  • Best Brake Controller for a 2024 Chevy Silverado 2500 w/Factory Tow Package
  • I highly recommend using the Curt Echo Under-Dash controller and the plug-in adapter for your 2024 Chevy Silverado 2500, so you'll need the following parts: - Curt Echo Under-Dash Brake Controller # C27JR - Plug-In Adapter # C51525 I really like the Echo because it keeps you from having to put a "brick" in your truck cab since you set the controller settings through your phone. Once you get your settings in place the only thing you need your phone for is the manual override. If
    view full answer...

  • Will the Curt Echo Under-Dash Trailer Brake Controller Draw Power with Vehicle Off
  • The Curt Echo Under-Dash Trailer Brake Controller part # C27JR as with most any electric trailer brake controller will draw a very small amount of power even when the vehicle is off so it can save all your settings. That said, the power draw is milliamps so even for a vehicle that is not daily driven there will be no issues with a dead battery. If you want, you can unplug it each time to kill power but that means you lose all your saved settings for the trailer. This is the case for nearly
    view full answer...

  • Recommended Trailer Brake Controller for a 2023 Honda Ridgeline
  • It sounds like you might be interested in a trailer brake controller for your 2023 Honda Ridgeline and if that's the case we have some great options. I recommend the Curt Echo Under-Dash Wireless Brake Controller part # C27JR since it just simply plugs in under the dash so there is no drilling into the dash or knocking your knees each time you get into the truck. It would make for a plug-in-play installation when using the Curt Custom Wiring Adapter for Trailer Brake Controllers part #
    view full answer...

  • Plug and Play Brake Controller Recommendation for a 2024 Mazda CX-50
  • Hey Danny, thanks for reaching out! I recommend using the Curt Echo Under-Dash Bluetooth Brake Controller # C27JR which will plug into your 2024 Mazda CX-50 using the Adapter # C32FV as long as your CX-50 has the factory tow package. I really like this brake controller because you adjust your settings via an app on your phone and then the controller remembers the settings and remains up under your dash so it doesn't affect the look of your vehicle at all. If your vehicle doesn't have
    view full answer...

  • Wiring Diagram for Curt Echo Under-Dash Trailer Brake Controller
  • See the wiring diagram below from the Curt Echo # C27JR installation manual. The blue wire is the brake output, the black wire is the 12V power, the red wire is the stoplight switch, and the white wire is the ground. Depending on the vehicle there may be a custom wiring harness available for a plug and play installation. If not, you can either cut the existing plug off to hard wire the brake controller or use the # C51515. I have attached the written instructions along with an installation
    view full answer...

  • Which Curt Echo is Better? The Inline or Under Dash
  • Hey Jon, so in theory the inline Echo Mobile part # C51180 and the under dash part # C27JR should perform the same but we have found that the under dash version works a lot better so it would be the way to go. Overall performance and connectivity just is more consistent. It's also not easy for a thief to potentially steal like the C51180. Which to install it in your 2023 Honda Ridgeline all you would need is the part # C51392 and you'd be set.
    view full answer...

  • Redarc Brake Controller Install on 2020 Chevy Equinox
  • A brake controller isn't a vehicle specific item. The Redarc brake controllers such as the Tow-Pro Liberty, # RED24FR will fit your 2020 Chevy Equinox. Vehicles equipped with the tow package will have blunt-ended tow package wiring located behind the side panel of the center console on the driver's side next to the gas pedal. You'll be looking for a bundle of 4 blunt ended wires that are blue, black, white/blue striped and white/green stripe. In addition to the # RED44FR Tow-Pro
    view full answer...

  • Does Curt Echo Need The App and Wifi to Function
  • You will need to pair the Curt Echo Under-Dash Trailer Brake Controller - Bluetooth - 1 to 4 Axles - Proportional # C27JR for the initial setup but once that is done it will operate on the previous settings even if you didn't have your phone with you. You will want the app to be open for use of the manual override, or if you need to adjust the braking power. This does not require wifi, it uses Bluetooth to connect.
    view full answer...

  • Parts Needed To Install the Redarc Tow-Pro Liberty on a 2018 Freightliner XC Chassis
  • Yes, there is a way to have a plug and play installation if your 2018 Freightliner XC has the factory towing package. There will be a plug to the left of the brake pedal, behind the plastics shroud that encloses the left portion of the lower steering column. I have attached a picture below for reference. If this plug is there you will be able to use the Plug-In Wiring Adapter item # 3027-P and the Redarc Tow-Pro Wiring Adapter item # 331-TPH-017. These two adapters will allow you to connect
    view full answer...

  • Correct Curt Brake Controller Adapter Harness Plug for 2019 Volkswagen Atlas
  • I checked with Curt and the correct brake controller wiring harness adapter needed to install a Curt trailer brake controller like the Curt Echo Under-Dash Trailer Brake Controller part # C27JR which is what I recommend on a 2019 Volkswagen Atlas is the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51522.
    view full answer...

  • Wiring Harness For Curt Brake Controller on 2002 Ford F-350 Super Duty
  • Yes the wiring harness for your 2002 Ford F-350 Super Duty is indeed the same Curt brake controllers. The Curt brake controllers for your truck will use the Curt Wiring Adapter # C51322.
    view full answer...

  • Where is the Brake Controller Installation Plug on a 2000 Ford F-250
  • The plug you're looking for on your 2000 Ford F-250 is likely located behind some of the wire looms or possibly even tucked away in a nook off to the side when you remove the dash panel, but it will be there somewhere. Once you find this plug you'll be able to use the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51322 to install the Curt Tri-Flex # C74VV. I've linked a few installation videos of brake controllers that use a brake controller adapter plug so
    view full answer...

  • Where is the Wiring Harness for a Curt Custom Wiring Adapter # C51322 on a 1996 Ford F-150?
  • According to the instructional manual of the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51322, the harness on your 1996 Ford F-150 is located underneath the dashboard near the center console. I went ahead and attached a photo to this answer that I highlighted that shows the location.
    view full answer...

  • Brake Controller Installed on 2001 Ford Van Causes Turn Signal to Malfunction
  • You are using the factory pigtail provided when you purchased the vehicle, not the # C51322, is that correct? If this is the case, the factory pigtail uses a different wire color code than the aftermarket ones, which match up color for color. Before proceeding further, lets make sure you have the pigtail wired correctly to the brake controller. An incorrectly wired harness or pigtail could cause the problem you describe. Over the years, Ford has made two different factory pigtails, one
    view full answer...

  • Where is Install Connector on 2014 Ford Explorer for Curt Brake Controller
  • The correct install harness for a Curt brake controller in a 2014 Ford Explorer is the part # C51322. The harness you are looking for on your vehicle will be under the dash to the center towards the center console. I attached an install video that shows a different brand controller and harness installed in a 2013 Ford Explorer which will be the exact same process. Around the 10 minute mark is where the connector on the vehicle is found.
    view full answer...

  • Does Curt Brake Controller Install Harness # C51322 Fit 2000 Ford F-53
  • Yes, for your 2000 Ford F-53 RV chassis the Curt brake controller install harness part # C51322 is a confirmed fit and would work well. It would work really well with the Triflex part # C24VV.
    view full answer...

  • Will Brake Controller Plug-In Adapter C51322 Fit 2004 Ford Expedition And 2004 Ford E-350
  • The Curt Custom Wiring Adapter, part # C51322 is designed to work with the # C74VV brake controller and will fit both of your vehicles if there is a factory trailer connector installed on the vehicle. If you have a 4-way connector on either vehicle then you will also need part # 37185. If your E-350 does not have a trailer connector you will first need to install a 4-way connector like part # 18252. You will then need part # ETBC7 to get a 7-way at the back of your vehicle. If there
    view full answer...

  • Curt Brake Controller and Wiring Adapter for 2015 Forest River FR3 30DS on Ford F-53 Chassis
  • To use the Curt Assure Brake Controller # C49UR with your 2015 Forest River FR3 30DS, which was built on a Ford F-53 chassis, you will need the Wiring Adapter # C51322. The other part you will need is Adapter # 37185 to give you 7-way on your motorhome.
    view full answer...

  • Can Curt Brake Controller Install on 2009 Porsche Cayenne
  • For the 2009 Porsche Cayenne you can install a Curt brake controller like the part # C24VV but due to the complex wiring of your vehicle we don't have a specific fit harness for it. I attached a tech bulleting below that details everything that's needed to install a controller as well as a fitguide list for all the controllers that fit your vehicle. If you had ran your vehicle through our fitguide you'd seen the list of controller and how they need to install. If you searched for brake
    view full answer...

  • Economically Priced Proportional Brake Controller Recommendation for a 2004 Ford F-150
  • For a great brake controller at a great price I would recommend the Curt Triflex Brake Controller part # C24VV. This is a proportional brake controller that will sense how much braking power the tow vehicle is applying and will proportionately apply the trailer brakes to slow the trailer down in a smooth, effective manner. To install the brake controller all you need is the correct install harness which would be the part # C51322. Check out the link to the install video I attached as well.
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  • Brake Controller and Install Harness for a 2013 Ford Explorer
  • For installing the Tri-Flex brake controller part # C24VV in a 2013 Ford Explorer the correct install harness is the part # C51322. I confirmed this with Curt as a fit for your vehicle. he Ford Explorer and Mercury Mountaineer have 6-pin connectors behind the glove box on the passenger's side that this connector will install into.
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  • Does Curt Brake Controller Install Harness # C51322 Fit 2007 Ford F-150
  • The Curt brake controller install harness part # C51322 that you referenced is a confirmed fit for your 2007 Ford F-150.This adapter plugs into the port on your vehicle's built-in brake control wiring harness. For most applications, this harness is located beneath the dash, near the center console. Most likely the mechanic you brought it to didn't know where to connect it. This would work well with the proportional Triflex part # C24VV.
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  • Recommended Curt Wiring Harness for Brake Controller on 2003 Ford Explorer
  • To make your Curt Venturer Brake Controller # C74VV able to function with your factory tow package you simply need the wiring adapter harness. For your 2003 Ford Explorer Eddie Bauer edition, that wiring adapter is the Curt Custom Wiring Adapter for Trailer Brake Controllers # C51322. On an Explorer that harness is behind the glove box on the passenger's side.
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  • Brake Controller Wiring Harness for a Curt Brake Controller on a 2014 Ram 1500
  • If you are using a Curt trailer brake controller then for your 2014 Ram 1500 you will need harness # C51453. Harness # C51322 fits Ford, Land Rover, Lincoln, and Mercury vehicles. The new Rams have a unique multiplex wiring system called Powernet. Because of this new design it requires a special brake controller harness, # C51453, which will allow the Curt brake controller to function properly.
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  • Is The Curt Wiring Adapter Compatible w/ Hayes Energize III Trailer Brake Controller For 1996 F-350?
  • The Curt Wiring Adapter # C51322 is compatible with the Hayes Energize III+ Trailer Brake Controller # HA81742B. Both the Curt and Hayes Adapters # HA81783-HBC utilize the same connectors allowing you to use it on your 1996 Ford F-350.
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  • Wiring Harness for 2013 Thor Challenger With Curt Brake Controller
  • For a Curt brake controller, the correct brake controller wiring harness for your 2013 Thor Challenger is the Curt Wiring Adapter # C51322.
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  • Parts Needed to Install a Brake Controller in a 1994 Ford Bronco
  • Yes, to install a Curt brake controller like the TriFlex part # C24VV in your 1994 Ford Bronco all you would need is the correct brake controller install harness part # C51322 that you referenced. 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.
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Info for these parts were:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Written by:
Lindsey S
Employee Joshua S
Video by:
Joshua S
Employee Jonathan Y
Video by:
Jonathan Y
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Ryan G
Test Fit:
Ryan G

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