Hopkins Agility Trailer Brake Controller - Plug In - 1 to 4 Axles - Proportional
Hopkins Plug-In Simple Brake-Control Wiring Adapter - Ford

Part Numbers: HM47294,HM47845

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Hopkins Agility Trailer Brake Controller - Plug In - 1 to 4 Axles - Proportional
part number: HM47294

Proportional brake controller mounts easily. Digital display indicates braking action of trailer. Fine-tune power adjustment has 5 levels so that you can set braking intensity to suit your towing needs.


  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
    • Activates immediately - no pausing like with time-delayed brake controllers
  • Recommended mounting is between -20 degrees and 70 degrees
  • 5 Sensitivity levels let you adjust initial braking power and aggressiveness
  • Digital display is easy to read
  • Built-in, slide manual override lever
  • Plug-in, vehicle-specific brake-control adapter is required for installation


  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric or electric-over-hydraulic trailer brakes
  • Dimensions: 3" wide x 5" long x 1-1/4" tall
  • Limited lifetime warranty

Proportional Braking

With a proportional brake controller, you can get heavy-duty emergency braking, general braking or slow-to-an-idle braking for your trailer automatically. The intensity with which your trailer brakes are activated and the rate at which they are applied are dependent on the deceleration of your tow vehicle. This means that, unlike time-delay controllers - which send the same amount of preset power to your trailer brakes every time - proportional controllers are able to adapt to every braking situation differently. So, if you slam on the brakes in your truck, your trailer brakes will activate with that same extreme intensity. And if you merely slow down as you approach a red light, your trailer will gradually brake in the same manner.

As long as the Agility controller sits level on a horizontal plane and is pointed in the direction of travel, it will sense - via an internal inertia sensor - how your tow vehicle brakes. This inertia-based sensor responds to the deceleration of your tow vehicle as you brake by signaling the controller to send out enough power to your trailer brakes so that they are activated with an intensity that matches. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.

Power and Sensitivity Adjustment

Getting the braking power you need for your application is simple with the Agility. First, set the overall power so that you can achieve maximum braking without locking up your trailer brakes.

Once you have the overall power set, you can fine-tune the power output by adjusting the sensitivity of the internal sensor. Use the adjustment buttons on the top of the controller to achieve your desired degree of intensity. There are 5 levels to choose from. The first level offers the least amount of sensitivity, making it ideal for lightweight setups. The heavier your load, the higher you will want to take the sensitivity. At level 5, the sensitivity of the internal sensor is as high as it can go. This level provides the most aggressive braking and is ideal for heavy loads.

Digital Display

On the front of the Agility there is a digital display that is designed to keep you aware of the braking action of your trailer. This screen shows your sensitivity level, overall power percentage and error codes for issues such as a short circuit.

Simple Installation

The Hopkins Agility is recommended to be mounted in your cab at an angle that is between -20 degrees and 70 degrees to make it easy to access.

Correct Agility mounting90-Degree Agility mounting

Note: The Agility must be mounted on a level horizontal (side-to-side) plane and must be lined up with the direction of travel for the internal sensor to function properly.

To install the Agility, a vehicle-specific wiring adapter is required. These custom kits are available for most newer trucks and SUVs. One end of the custom adapter plugs into your vehicle, and the other end plugs into the controller - no hardwiring required.

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.

47294 Hopkins Agility Proportional Trailer Brake Control - Plug-In Simple

California residents: click here

Hopkins Plug-In Simple Brake-Control Wiring Adapter - Ford
part number: HM47845

Designed for your vehicle with a factory tow package, this wiring harness plugs into the quick-connect harness located under your dashboard and into your Hopkins Agility, Impulse, Reliance or BrakeForce brake controller for easy installation.


  • Connects your Hopkins brake controller to your vehicle's factory tow package
    • 1 Plug is inserted into the back of your electric brake control
    • 1 Plug is inserted into the factory-installed port under your dashboard
  • Requires no cutting or splicing wires for installation - just plug and play
  • Works with Hopkins Plug-In Simple brake controllers (Agility, Impulse, Reliance and BrakeForce)
  • 90-Day limited warranty

Tech Tip: The OEM plug in your vehicle is located under the dashboard to the right of the steering column, behind the black pocket in the dash.

This brake-control wiring adapter will simplify the installation of your Hopkins electric brake controller. Once the brake controller is installed, the harness then plugs into a port under the dash. Because your vehicle has a factory tow package, all the wires for the brake controller have already been run from the 7-way trailer connector at the back of the truck to the plug under the dash. If your vehicle does not have a factory 7-way, additional wiring will be necessary to complete installation.

47845 Hopkins Plug-In Simple Brake-Control Wiring Adapter - Ford

California residents: click here

Video of Hopkins Agility Trailer Brake Controller - Plug In - 1 to 4 Axles - Proportional

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

Video Transcript for Hopkins Agility Trailer Brake Controller Installation - 2018 Ford F-150

Ryan: Hey everybody. Ryan here at etrailer.com. Today on our 2018 Ford F150 we're going to be taking a look at and showing you how to install the Hopkins agility brake controller and we're going to be installing this in conjunction with the Tekonsha T connector vehicle wiring harness with the seven way connector as well as the Hopkins simple plug in brake controller adapter. The brake controller is going to allow us to pull a trailer that has brakes on it and that's going to be able to operate them. That way we can tow more safely. What I really like about this brake controller is how simple and easy it is to use.

Compared to some of the other ones that have a ton of different menus and settings that you got to figure out, this one's really straight forward. Brake controller's just going to have a handful of buttons.This large red one here, this is going to be the manual override and so whenever you would push this down, it will apply the trailer brakes and that's going to apply the trailer brakes even if we don't apply the brakes here on our truck, and that's good for a sway situation or a jackknife situation when you need to straighten your trailer back out. Now what's kind of cool about this on some of the other brake controllers. If you hit it, it kind of goes to a predetermined amount of power. This one actually applies more power the harder you push the button.

That way if you don't need as much power to get your trailer straightened out and you just want to hit the brakes a little bit, lightly push on it. But if you really need to step down on the brakes, push your button all the way down and it applies them even harder. On the top left of our brake controller, we're going to have two buttons. One's going to be a plus and one's going to be minus. With these buttons, you can dial in how much power is being applied to your trailer brakes, 99 being the maximum number.

And if you push it the button down, it'll actually work down or up in increments of five all the way down.Five will be the minimum number. So that means there's going to be very little power being applied to your trailer brakes. So whenever you adjust this, normally you'd want to start pretty much right in the middle, so right at 50. That way if you need more braking, you can go up. If you need less, you can always go down.

You're right in this sweet spot to make it easy and fast to adjust. And then we're just going to have one more button here on the left hand side. And this is going to control the sensitivity. What this button does is adjust how sensitive the internal sensor is and how to apply the brakes. So if you push it, we're going to have five sensitivity levels starting at one, two, three, four, five. One is going to be the least sensitive and five is going to be the most sensitive. So if you bump up the sensitivity level when you have more weight in a trailer, this will apply the brakes quicker so you'll come to a faster stop.So say if you dial the sensitivity down a little bit to a one or two, what that's going to do is apply the brakes less aggressive. So the brakes are going to come on more gradually and it's going to create a smoother stop. And you're typically going to use this for trailers that don't weigh as much. Brake controller's going to work for trailers with one to four axles and it's actually going to be a proportional brake controller. So what that means, the harder you apply the brake in the truck, the harder the trailer brakes are going to be applied. So for example, say you're just rolling up to a red light and you're barely on the brake, the trailer brakes are going to match it.But say in the event where you really need to stand on the brake pedal, in an emergency, mat it to the floor, the trailer brakes are also going to match that intensity. So overall it just makes for a more smooth and predictable stop. So overall, just a really simple, easy to use, straightforward brake controller and in my opinion, looks pretty good too. Nothing too crazy going on with it. Kind of just blends in. Now in my opinion, this is a brake controller that would work perfectly for those of you who typically only tow one or two trailers. That way you don't have to go through some of the other brake controllers with a lot of settings and have to worry about dealing with all that. As far as the installation goes, since we are using an adapter plug, it is really straightforward since more or less it just plugs right in. Speaking of which, let's go ahead and do that together.Now to begin our installation, we're going to be here underneath the back of the truck and we're going to be working on the driver's side. On the inside of our driver's side frame rail, we're going to have a few connectors, and the connector that we're going to be working with is this one up here, so you can kind of pull that off of this brace here, pull it down, give you a little more room work, and what we're going to do is disconnect it. Push on the center tab. You're able to pull the two ends apart and that's what each one looks like. Just to kind of give you a better idea. Now we can grab our new wiring and the T connectors here. What we're going to do is take some dielectric grease and just put a nice coating on there to help protect the terminals. If you need some dielectric grease, you can find it here at E-Trailer. Once we have that coded, we can then plug it in. So this end of our new wiring is going to plug into this end of our factory wiring. These will only go in one way.Same thing at the other end. Make sure you plug this in back over this beam here because our spare tire does go open this location, we just have it removed right now. Make it a little bit easier to see. Put that end in. Then we can go ahead and ground out our white wire to the chassis right here. Now kit with a self tapping screw. However, this hole is quite large. So what I've done is just used a small washer I had laying around to kind of help make a better connection here. That being said, we can line it up with our frame and get it secured.And here's what it looks like once you have it grounded out. So I went ahead and took the other end of our wiring and ran it through our seven way bracket. The other end does have tape on it, so you want to be sure to peel it off to expose these wires. But with that being said, what we're going to do is take the back of our seven way plug separate connector and we can work on getting all of our wires plugged into the back of it. So each wire here, each color is going to have a designated spot here in the back of our connector. So we'll go over which color wire goes where now. If you start here with this larger opening, that's going to be for our white wire, which is the ground wire. And if we work clockwise, we'll come down to this opening here.And our blue wire will go into that, which is for trailer brakes. This one, the brown wire, will go into it and that'll be for our right turn signal as well as our brake lights. This opening here, the black wire will go into it. That's for our 12 volt auxiliary power. This one here, our green wire will go into it and that'll be for our tail lights. This one here, our red wire and go into it and that'll be for the left turn as well as the brake lights. And then the one in the center, the yellow wire will get plugged into it and that'll be for our reverse lights. Now all the wires are going to plug in the same way, so we'll just do this blue one to show you how. That's going to go there. So if you flip this over, and if we look inside of the connector, you're going to be able to notice a small little opening kind of towards the center.And if you look at our metal portion here, you'll be able to see that there's kind of a open slot here. That's going to plug in like that. We can take it back over, line everything up, it'll push into place. You can lightly pull back on it to make sure it's secured. A little bit of movement is acceptable. Once we got that plugged in, we'll just follow that sequence to get the rest of our wires fully connected. So I got the rest of our wires plugged in and this is the way it looks. And once they're all connected, what we can do is take our little gray keeper and this is going to kind of feed through the wires into this portion of the plug and then just snap down into place. Back for the plug, we're also going to give that a good coating of dielectric grease. We can grab our seven way plug, and pair the two together.So we get them connected and push it into the bracket, then grab our hardware and get it secured. Now that everything is mounted up, what we can do is come back with some zip ties and secure all of our wiring. Now we can test everything and make sure it's working properly. So go ahead and try our brake lights, our running lights, our left turn, our right turn and hit our brake controller override to get our 12 volts and our brake signal. And if I start the truck up we can put it in reverse and make sure those are working too.And while we're at it, it's never a bad idea to check our factory four pole too to make sure it still has all its proper functions. Go ahead and do our left turn, our right turn, our brakes and we can turn on our running lights. Now that we have our seven way all hooked up, what we can do is hop up in the driver's seat and get our brake controller itself installed. So to get to our factory plug, we're going to have to remove this panel here right underneath our steering wheel. So if you just kind of grabbed the top of it with your hands and just kind of pull it towards you, release some clips, this will kind of just swing down and out of the way like so. There's going to be a metal plate. Get that out of the way. And at each corner we're going to have a 10 millimeter bolt. Just lift the plate up and that's set aside for now. Now the plug is going to be a little tricky to see, but on the front of your dash you're going to have a little pocket where you can kind of put your change, your credit cards or any of your belongings.And on the back of it the plug is actually going to be connected to the plastic. So we'll go ahead and disconnect that. Might be a little tricky to see, but once I pull it out, I'll show you. That's what the plug's going to look like. And to pull it out, if you push down on this center tab and pull back simultaneously, that'll allow it to pop out. Now we can grab our adapter. We're going to want to take this end here with the four connectors that plugs into the back of our brake controller. You're going to want to just slide that down underneath the dash. That way when we put our panel back up, it won't get pinched. The gray connector's simply just going to plug right into this one. It'll only line up one way and push the two together. Now we can grab our metal panel and get that re-installed the opposite way that we removed it. And our plastic panel simply just lifts back up. It gets pushed back into position.So if we grab our brake controller and the bracket that comes included with it, what we can do is just kind of loosely assemble it. That way we can get an idea on where we want to mount our brake controller. The spot that I think I'm going to choose is about right here. Now if you choose a different spot, you want to be sure there's nothing behind the panel. We know pretty much this whole area is good to go since we just had it off, you know there's nothing behind there. So I'm going to kind of hold this in place. Get a good idea on where I want to mount it and take the included screws and secure it to the dash. You want to try and get this as level as possible. Well, just kind of a quick tech tip that I found with my experience is that usually the screws that actually thread into the brake controller that holds it to the bracket, they're usually pretty difficult to get started and especially difficult when you're trying to hold this steady in possession lined up with the bracket and trying to get a screw started at the same time.So what I found is if you just barely get these going by hand and then tighten them down before we put it to the bracket, that'll kind of create the threads that we need and make it much easier to get it secured to the bracket. So we'll run both these down and then just take them back out. Once we do that to all the holes here on our brake controllers, then we can fasten it to the bracket. We'll grab our brake controller and our adapter, plug these two in together. Line up the holes in our controller with the holes in our bracket and get it tightened up.So I went ahead and secured our wiring and this is what it looks like. With everything complete it's a good idea to test your brake controller to make sure it's functioning properly. So we went ahead and plugged it into a tester at the back of our truck. If you don't have a tester, you could always just use your trailer. But the little red light here is indicating that we do indeed have power. If we hit the manual override, that is putting that brake signal out, so we know our brake controller is functioning properly. And that'll finish up our look at and our installation of the Hopkins agility brake controller on our 2018 Ford F150.

Customer Reviews

Hopkins Agility Trailer Brake Controller - Plug In - 1 to 4 Axles - Proportional - HM47294

Hopkins Plug-In Simple Brake-Control Wiring Adapter - Ford - HM47845

Average Customer Rating:  4.8 out of 5 stars   (126 Customer Reviews)

Proportional brake controller mounts easily. Digital display indicates braking action of trailer. Fine-tune power adjustment has 5 levels so that you can set braking intensity to suit your towing needs. Designed for your vehicle with a factory tow package, this wiring harness plugs into the quick-connect harness located under your dashboard and into your Hopkins Agility, Impulse, Reliance or BrakeForce brake controller for easy installation.

- HM47294
by: Harry07/12/2018

First I would like to say etrailer is a great company to work with, they made contact with me by phone no an email to let me know that my parts were bcaked ordered and if I I was pressed for time they would send another like unit ASAP. Though I haven't had the opportunity to try the brake control the wire harness I ordered for my 2002 chevy silveroda and Control went in with no problems 540714

- HM47294
by: Joe L.05/04/2013

Looking forward to many a miles use of the Hopkins Agility. Install was a snap ... recommend using sockets vs. a screw driver to secure the screws to the unit. 79000

- HM47294
by: Harold S11/04/2016

Good Quality product. Well written installation and usage instructions. 313669

- HM47294
by: Kevin r05/08/2017

This plugged right in and works great.i don't know how it could function any better than it does.its nice to be able to push a button and just use trailer brakes 378035

- HM47294
by: Frank B07/07/2017

Just finished installing my Hopkins brake controller with the plug in wire harness for my Toyota Tacoma. Couldn't have been simpler. Took about 10 minutes. Took longer to find the factory connector which was part of the tow package on my truck. Nice product, also reached out to the tech department last night around 11pm and had the answer this morning at 7:30 am. That's great service, could have gotten it a little cheaper through another site, mainly because of free shipping but quality service like this is worth plenty. If I need any trailer accessories again etrailer will be who I call. 403544

- HM47294
by: Kevin R.04/04/2018

etrailer.com made my product selection easy. They even showed the recommended wiring adapter without me having to search for it separately. This brake controller was easy to install and setup. This, in addition to a good price, made my purchase and installation easy. I would definitely choose them again for my camper and towing needs. 492582

Im still happy with my products that I purchased from you. Thanks for checking and and have a nice day.
Kevin R - 04/08/2019


- HM47294
by: Dennis05/11/2020

Positive 795719

- HM47294
by: Gary03/28/2020

Product arrived promptly. Appears as advertised, but I have yet to install it so can’t comment on its functionality. Have every reason to believe it will perform to expectations. If not, I will be mad as a wet hen. If it works, I will be happy as a lark. 772015

- HM47294
by: Lonnie03/25/2020

Very pleased with this product, works as advertised. 770635

- HM47294
by: Robert T03/25/2020

So easy a cave man can do it. Just plug and play with this one, I’ve always had the old style that had to have a line from the brake master cylinder to the controller. My only issue was where I installed it bumps my knee occasionally. 770322

- HM47294
by: Lawrence12/10/2019

Perfect for my install on the 2017 Nissan NV2500 Cargo van. Thanks! 732884

- HM47294
by: Ricky08/23/2019

very happy 693031

- HM47845
by: Bret08/22/2019

Easy install, watched etrailer video to find best way to get to factory plug. Made a custom bracket and mounted slide and led where factory controller is supposed to go. Don't use just db tape to mount the main unit use screws. Last thing you want is it flopping in your feet while on the road. 693791

- HM47294
by: Cory Unrein07/16/2019

Doesn't work very well. Flickers on and off during driving. 671132

- HM47294
by: Thomas06/30/2019

Very nice product that is easy to install and use. 664920

- HM47294
by: Lloyd06/16/2019

Control mounted easily and the connector linked up with the connector under the dash perfectly and it works great! 658773

- HM47294
by: Matthew06/04/2019

I haven't used it yet, but the installation was simple as described on the web site. 653107

- HM47294
by: Gary02/14/2019

Easy install had plug and play 1984 f150. Easy to adj and works well 604954

- HM47845
by: Joshua02/08/2019

Helped locate the right part and online video helped with install 603458

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by: Paul11/08/2018

received very quick! i have not installed the controller yet but i'm sure i'll be very pleased as a good friend of mine has one and loves it. i've used his truck and my trailer to haul my skid loader and the hopkins worked perfect. 581291

its been a year since installing my hopkins brake controller and it works perfectly. i tow my bobcat on a 18 dove tail trailer and i cant believe how well it makes my truck and trailer slow down and stop. i highly recommend for a easy install and adjustability at a very good price
paul g - 11/13/2019


- HM47294
by: George08/25/2018

Works just as good today as the day I bought it. Super simple installation, easy configuration, and it’s been rock solid reliable. 557966

- HM47294
by: Thomas08/24/2018

Easy install with vehicle specific cable. Probably took me 30 minutes taking my time. Took the trailer for a short ride and everything seems to function perfectly. Haven't taken an extended trip yet. Easy if you check out the etrailer install video first. 557603

- HM47845
by: Don08/16/2018

Made it easy to connect my brake contro ller. 554449

- HM47294
by: Roy08/10/2018

Unit started up with no issues. The adapter cable plugged right in. Your install videos were right on. Thanks 552051

- HM47294
by: Daniel07/13/2018

Everything fit and functioned as promised. Thanks you. 541180

Show More Reviews

Ask the Experts about this Trailer Brake Controller

  • Using 7-Way 12V Power Circuit to Power Trailer LED Interior Lights
  • Yes, you certainly can use the 12V auxiliary power circuit on your 7-way wiring setup to power trailer lights. If you refer to the linked photo of a vehicle 7-way connector you will note that the 12V power circuit is carried on the contact at the 1:00 position as you look at the 7-way socket. This is noted by the yellow arrow. An easy way to access this 12V power circuit is to tap into it by using a junction box like # 277-000141. This box gives you a handy place to install a ring
    view full answer...

  • Brake Controller for 2008 Dodge 2500 Diesel Towing Heavy 12000-lb Trailer
  • I recommend going with the Hopkins # HM47294 which is a proportional brake controller with 5 adjustable power levels to handle even the heaviest tow loads. This controller works on trailers with up to 4 axles, so you'll be able to use it on most other trailers that you may need to tow in the future. The easy to read display shows how much power is being supplied to the brakes and the controller can mount easily under your dash, so it's out of the way yet still easy to access the manual
    view full answer...

  • Locating the Brake Controller Connector on a 2017 Ford F-150 to Install the Hopkins # HM47294
  • The Hopkins Agility Trailer Brake Controller # HM47294 will install in your 2017 Ford F-150 by using the Plug-In Adapter # HM47845. The adapter will plug into the connector which is installed behind a side panel between your steering wheel and your radio. You will need to disconnect the connector from that side panel (which is where an OEM controller would normally sit) and bring it to the underside of your driver side dash for installation. I have attached a video of the Tekonsha Prodigy
    view full answer...

  • Potential Causes for Continuous "Check Trailer Wiring" Warning Message on 2018 Chevy Silverado 2500
  • I appreciate your fighting spirit and your urge to get to the bottom of the issue behind the intermittent trailer connection warnings that appear on your 2018 Silverado that has a factory-installed trailer brake controller. But one of your comments caught my ear: "...they're barely, if at all, there..." I presume you are referring to the trailer brakes showing little or no actual stopping power; is this correct? The most obvious direction for my thinking on this is a simple connectivity
    view full answer...

  • Troubleshooting Brake Controller E2 Error Code
  • The Hopkins Agility Trailer Brake Controller # HM47294 you asked from is most likely too new to get that E2 code like the older models (it would be SC instead) according to my tech contact at Hopkins. With either the SC or the E2 code, it is showing a short in the blue output wire somewhere between the controller and the brake magnets. This can be due to a pinched or broken wire, a bad ground wire, or it could be from a bad magnet as you stated. I recommend using a circuit tester
    view full answer...

  • Troubleshooting Brake Controller that Locks Up When Brakes Are Touches
  • Normally the issue is a short between the stop/turn light circuit and the brake output, but since you said you have a Hopkins Reliance (ironically the least reliable brake controller) there is an equal chance the controller is in need of replacing. Try putting both blinkers and see if the trailer brakes pulse in unison. If so, the issue is the wiring short. If not, then the issue is the controller is bad and needs to be replaced. For a brake controller I would recommend the Prodigy
    view full answer...

  • Installing Trailer Brake Controller on 2008 Chevy Express Van Cutaway Chassis
  • A Chevy Express cutaway chassis won't have the connector under the dash for installing a brake controller, so the controller will need to be hardwired. You'll first need to install a functioning 4-pole trailer connector on your vehicle, using the part # 18252 kit. Once the 4-pole is installed, you'd complete the install using our Brake Controller Installation Kit, part # ETBC7. The kit includes everything needed to complete your installation, but if your cutaway chassis is longer than
    view full answer...

  • Brake Controller Installation on 1995 Jeep Grand Cherokee With Factory 7-Way Trailer Connector
  • Sometimes Mopar used a light green wire, sometimes it was a blue wire. The fact that the wire you found has a tag on it positively identifies it as the brake output circuit. I'd recommend the # 5506 Brake Controller Install Kit. I've linked you to a video showing the kit being used to install a different controller on a 2000 Grand Cherokee. The procedure on your vehicle would be very similar. The brake stoplight switch wire you'll need to attach the red brake controller wire to would
    view full answer...

  • Wiring Adapter to Install Hopkins Agility Brake Controller on 2015 Toyota Tacoma
  • If your Tacoma has the factory installed 7-way trailer connector at the rear bumper, it will be equipped with the brake controller connector under the dash. The connector will be located above and to the left of the emergency brake pedal, above the kick panel, as shown in the provided photo. For the Hopkins Agility brake controller, you'd need their # HM47815 brake controller adapter. If the vehicle is NOT equipped with the factory installed 7-way, it will not have the under dash connector,
    view full answer...

  • How to Install a Brake Controller on a 2007 Ford Explorer with a 4-Way Factory Connector
  • You can use that factory port for the brake controller, however, there is no 7-Way kit available for the 2007 Ford Explorer with factory 4-Way. You will have to find were the blue wire for brakes terminates. From our experience it terminates in a harness behind the driver side wheel well or behind the door. You will need to route a length of wire # 10-1-1 from this point back to the # 37185 blue wire. The black wire will need to be routed under the vehicle and to the positive battery
    view full answer...

  • Wiring Adapter for a 2005 Nissan Frontier and Hopkins Agility Brake Controller Installation
  • Most likely, the 5th wire is for illumination. None of the brake controllers we sell have this feature. But it is not needed to install a brake controller, including the Hopkins Agility Trailer Brake Controller, # HM47294. The wires on the Reliance brake controller are as follows: White is the ground. Blue connects to the trailer brakes via a 7-Way connector. And Red is the stop light that connects to the switch at the top of the brake pedal. Black is the 12 volt hot lead. The simplest
    view full answer...

  • Troubleshooting Factory Integrated Electric Brake Controller on 2008 F-350
  • It sounds like the brake controller is working properly and is acting normal. The factory integrated brake controller on your 2008 Ford F-350 Diesel is a proportional brake controller. It applies the brakes to the trailer in the same intensity and time as your truck, however there's a small amount of voltage constantly running through the circuit so your F-350 can detect if the trailer is hooked up or not. So with truck was sitting still and the engine running, you should not have any
    view full answer...

  • Brake Controller And Plug-In Harness For 2015 E-350 Ford Motorhome
  • I called my contact at Hopkins and they told me that the Hopkins Agility Trailer Brake Controller, part # HM47294 will work well with your 2015 E350 Ford Motorhome. For ease of installation the plug-in connector I recommend is part # HM47855. You simply plug one end into the back of the controller and the other end into the factory-installed port located under the dash. I have attached links to a couple of product review videos you can check out.
    view full answer...

  • Replacement Brake Controller Recommendation for Hopkins Impulse that Doesn't Adjust Intensity
  • Since you have a Hopkins Impulse brake controller which has a reputation as not being the most reliable option out there your best solution is going to be replacing the controller as what you described sounds like an internal problem. For a brake controller I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of
    view full answer...

  • Recommended Wiring Harness for 2017 Toyota Tacoma to Install Hopkins InSIGHT Brake Controller
  • For your 2017 Toyota Tacoma, the Hopkins InSIGHT Flex-Mount Trailer Brake Controller # HM47294 is a great option. There is a wiring harness made specifically for this fit. It is part # HM47816. I've attached a video of this installation on a Tundra to give you an idea of the fit. The Tekonsha wiring harness is only a fit for Tekonsha and Draw-Tite brake controllers.
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  • Hopkins Trailer Brake Controller Shows 4.5 Volts All the Time on a 1992 Chevy C/K1500
  • Brake controllers do send back minimum voltage to detect a trailer but not 4.5 volts constantly. It sounds like there is a short somewhere or perhaps the red wire is not connected to the correct brake switch wire. That is where I would start. Use your tester to test the wire that the brake controller red wire is attached to. It should only have power when the brake pedal is pressed and not also when the headlights or turn signals are on. If that is correct then to test the controller
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  • Brake Controller Recommendation for a 2006 Dodge Ram 2500
  • The Mopar brake controller is identical to the one they put in at the factory on certain Ram trucks. It is made specifically to fit the trucks it was designed for. In the aftermarket options there is nothing that is going to fit the same but they are also much, much less expensive and actually work better than factory integrated controllers. I recommend the P2, # 90885, because it is easy to set up and use and it is reliable. You will also need wiring harness # 3020-P to plug the controller
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  • Brake Light Switch Wire Color to Install a Brake Controller on a 2015 Jeep Wrangler Unlimited
  • On the 2015 Jeep Wrangler Unlimited the brake switch wire should be a white wire with a brown stripe. Use a circuit tester such as # 40376 to test the wire to make sure it is the one that only has power when the brake pedal is pressed.
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  • Hopkins Impulse Brake Controller Intermittently Locks Up Trailer Brakes
  • The Hopkins Impulse is a time-delay brake controller. That means that once you step on the brake pedal the controller will send back power to the brakes over a certain amount of time. With this controller there is no way to adjust that delay. It sounds like there is a loose connection somewhere or something is off inside the controller. Check the red wire connection and make a new connection as needed. Make sure the vehicle and trailer side connectors are clean and free of corrosion
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  • Hopkins Brake Controller Shows Short Circuit Error Code
  • The weight of the trailer would not cause the SC error code on your brake controller. The SC error code indicates there is a short circuit which is an electrical problem. The most common cause of this is a dirty or corroded trailer connector. Make sure that the truck and trailer side connectors are clean and free of corrosion inside where the wires attach as well as on the pins. The brake magnets, or even just one magnet could indeed cause this issue as well. As could wiring to the magnets.
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  • Hopkins Brake Controller Wiring Harness for a 2018 Ford F-150
  • Hopkins does indeed list brake controller wiring harness # HM47845 as a fit for the 2018 Ford F-150. There is a little cubby hole on the center console to the right of the steering wheel on the truck. Behind this cubby hole is the connector you need to plug in the brake controller. I included a drawing of the location.
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  • Hopkins Reliance Brake Controller Installation in 1999 Ford F-250 Super Duty
  • You can install your Hopkins Reliance hardwire-type trailer brake controller in your 1999 Ford F-250 by using harness part # HM47715. Just cut off the flat connector, splice the wires to your Reliance color for color using butt connectors like # DW05745-5 and plug it in to the under-dash port as shown in the linked video.
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  • Which Brake Controller Should I use on a 2005 Chevrolet Tahoe with Factory Trailer Connector
  • The part you were looking at includes the harness for Ford vehicles. If you want to use the Hopkins Agility, the part number you would need is # HM47294 and # 47795. It has the plug-in harness for your 2005 Tahoe brake controller port. That port will only be active if your Tahoe came with a 7-Way trailer connector from the factory. I would strongly encourage you to get the Tekonsha Prodigy, part # 90885 and adapter part # 3015-P. It is our best selling brake controller and is one of
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  • Installing Brake Controller And Wiring Harness On 2015 Ford Flex Without Factory Tow Package
  • I have attached a drawing that shows how the wires are run for the # ETBC7 and brake controller wiring. There is no plug-in adapter available for a brake controller for your Flex with no factory towing package so it will be a hardwire installation. I called my contact at Tekonsha and they said the plug you sent the photo of is not the connector used for a brake controller. You will need to use the circuit tester that came with the # ETBC7 to test the wires on your Flex. The red wire
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  • Fuse Location for Brake Controller on a 2005 Chevy Tahoe
  • On your 2005 Chevy Tahoe, if using a Hopkins brake controller you would need connector # HM47795. If it is a Draw-Tite, Reese, or Tekonsha harness you would use # 3015-P. For a Curt controller you would use # C51352. For a Hayes controller you would need # HA81780-HBC. None of these harnesses come with a fuse. It is possible that you are referring to the factory brake controller wiring harness that is included with some vehicles. If that is the case then the fuse for the brake controller
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  • Troubleshooting Brake Controller On 2003 Chevrolet Silverado When Trailer Brakes Dont Work
  • There are a couple of items that are causing your brake controller problem. The problem can be caused by either the stoplight wire incorrectly installed, or the adapter you are using is not designed for the brake controller you have. The plug-in adapter from Hopkins we show that is designed to fit a 2003 Chevrolet Silverado is part # HM47795. It is designed to fit certain models of Hopkins brake controllers like Hopkins Agility Trailer Brake Controller (HM47294), and Hopkins Reliance,
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  • 2008 Ford F-250 Will Not Start or Crank After Installing Hopkins Brake Controller
  • First let's make sure you are using the proper brake controller wiring harness for your 2008 Ford F-250. For a Hopkins brake controller you should be using # HM47855. It would not hurt to make sure that it is also plugged into the correct plug on your truck. I am fairly certain there is only one though but it never hurts to make sure. If your truck came with a brake controller pigtail from Ford and you hardwired the controller to it then the wire colors would not match up between the
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  • Brake Controller Wiring Harness for a Hopkins Brake Controller and 2012 Ford F-150 XLT
  • Brake controller wiring harness # HM47845 is the correct harness for a 2012 Ford F-150 XLT and a Hopkins Reliance brake controller. I have linked a video showing installation of a different controller and harness on a 2012 F-150 but it will be the same with the Hopkins parts on your truck.
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  • Recommended Brake Controller for 2013 Ford F-150
  • There are no aftermarket brake controllers designed to mount in the OEM slot. However, I recommend going with the Hopkins InSIGHT Flex-Mount Trailer Brake Controller. It can be mounted anywhere on the lower part of your dash, so while it won't fit into the OEM location, it can be positioned near it or over it. This particular controller uses two small components that are especially unobtrusive. I also recommend using the Hopkins Plug-In Simple Brake-Control Wiring Adapter for Ford vehicles,
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  • Brake Controller Recommendation and Installation for a 2005 Chevy Tahoe
  • There are a few connections you need to make under the hood of your 2005 Chevy Tahoe before the brake controller wiring will be complete. Check out the FAQ article I attached to see the connections that need to be made. Once complete you will be able to install a brake controller like our best selling/performing proportional brake controller the Prodigy P2 part # 90885 with the install harness part # 3015-P.
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  • Recommended Plug-In Adapter For Hopkins Brake Controller On 2013 Ford F-150
  • When installing the Hopkins InSIGHT Flex-Mount Trailer Brake Controller HM47297 on your 2013 F-150, you only need the additional plug-in adapter, part # HM47845 to complete the installation. You plug one end of the adapter into the back of the brake controller and the other end into the brake controller port located under the dash just to the right of the steering column.
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Info for these parts were:

Written by:
Tyler C
Expert Research:
Michael H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video by:
Joshua S
Updated by:
Alexander C
Test Fit:
Ryan G

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