Hopkins Agility Trailer Brake Controller - Hardwire - 1 to 4 Axles - Proportional
Universal Wiring Adapter for Hopkins Trailer Brake Controllers

Part Numbers: HM47295,HM47685

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Hopkins Proportional Controller - HM47295
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Hopkins Agility Trailer Brake Controller - Hardwire - 1 to 4 Axles - Proportional
part number: HM47295

Proportional brake controller can be easily mounted. 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
  • Multiple mounting options
    • Position at any angle up or down in the vertical plane
      • 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
  • Pigtail harness hardwires into your vehicle


  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric brakes 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 easier 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.

This brake controller is designed to be hardwired into your vehicle.

Installation Accessories

See 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.

Note: One of the following will be required to ensure proper installation:

20-Amp circuit breaker (9506P - sold separately) for 2- to 4-brake applications

30-Amp circuit breaker (38630 - sold separately) for 6- to 8-brake applications

47295 Hopkins Agility Proportional Trailer Brake Control - Hardwire

California residents: click here

Universal Wiring Adapter for Hopkins Trailer Brake Controllers
part number: HM47685

Designed for applications that do not come equipped with a brake control wiring harness port from the factory, this adapter plugs into your Hopkins trailer brake controller at one end, and the other end splices into your vehicle's wiring.


  • Universal wiring adapter eases installation of your electric trailer brake controller
    • No need to wire brake controller directly to your vehicle
  • Wire end splices into your vehicle's wiring
    • Use 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
  • Connector end joins with the plug on your electric brake controller
    • Compatible with time-delayed and proportional brake controllers from Hopkins
    • Simple to plug and unplug control for removal
  • 2' Long, 12-gauge wires have protective covering to deter damage
  • 90-Day limited warranty

Installation of Hopkins Brake Controller Adapter

To install your Hopkins 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. Usually when this is done, a port is installed at your dash so that you can easily plug in a brake controller. However, if no port is present, you will have to splice into your wiring.

With this universal adapter, you can install your Hopkins brake controller without having to wire the controller directly to your vehicle. If your vehicle has a factory tow package, just splice the pigtail end of the adapter into your vehicle's factory brake control harness wiring, and then plug the other end of the adapter into the controller. If your vehicle doesn't have a factory tow package, you'll have to hardwire the pigtail end of the adapter into your vehicle's wiring. Because only the adapter is hardwired to your vehicle, you can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.

If your vehicle is not equipped with a factory tow package, you will need to purchase additional equipment to ensure that the signals from your brake controller are sent to your trailer's brakes. We recommend etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).

47685 Hopkins Universal Quick Plug Brake Control Adaptor Harness with Pigtail

California residents: click here

Customer Reviews

Hopkins Agility Trailer Brake Controller - Hardwire - 1 to 4 Axles - Proportional - HM47295

Universal Wiring Adapter for Hopkins Trailer Brake Controllers - HM47685

Average Customer Rating:  4.8 out of 5 stars   (121 Customer Reviews)

Proportional brake controller can be easily mounted. 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 applications that do not come equipped with a brake control wiring harness port from the factory, this adapter plugs into your Hopkins trailer brake controller at one end, and the other end splices into your vehicle's wiring.

- HM47295
by: A. Smith09/21/2012

Excellent product, easy installation, works great. Here is a pic of the mounting spot I chose in a 2012 Ram 1500. etrailer has the BEST customer service on the web! 55427

I totally agree I called for a question and the lady did a fantastic job helping me figure out what I did not understand.
-- comment by: Joe H - 06/06/2015


- HM47295
by: Karl09/03/2019

Brake controller works great. Installed it on our Jeep TJ over the weekend....took my time ( that's what old retired guys do!!) and road tested it yesterday towing our new off road teardrop......No issues and the level of control options allows for adjustment to match the weight + or - being towed..... :-) 697246

- HM47295
by: Steve G07/05/2016

I wanted to add brakes to my VRV flyer… it’s very lightweight, but I’m pulling it with a Ford Ranger. My internet and local searches left me feeling that etrailer.com was the authority on the subject of brake controllers! Their ETBC7 install kit was VERY complete. I’m sure I saved a ton just by not having to make multiple runs to the hardware store for those items I hadn’t foreseen! Installation of the Hopkins Agility brake controller and the 7 pin plug took me longer than it would take most… It was Texas hot, so I only worked a few hours in the AM and in the PM. I’m old… retired, and not in a hurry! Toward the end of day one, I dropped a circuit breaker down in the abyss of the engine compartment. Day two AM was spent dissembling the wheel well housing to retrieve it! I’m very pleased with the neat, clean install, thanks in a large part to etrailer.com’s vehicle specific video and their wiring diagram. I heartily recommend them! SG 268468

- HM47295
by: A+07/17/2020

I have the same brake controller in 3 of my truck. Work like it should and easy to adjust. 844930

- HM47685
by: David05/09/2020

works fine 794275

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by: David05/09/2020

installed was easy works fine 794274

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by: David04/22/2020

I have used this brand on another vehicle. It worked fine. I assume this one will be fine too. 784272

- HM47295
by: Albert09/11/2019

I just received the product and looking at it it's well-built not a cheap flimsy piece of junk. I'm looking forward to using this controller. your service was outstanding the first one I received was broken due to shipping. I called I got an immediate answer and one was shipped out immediately to replace I got it in time to put it on the vehicle before we left on our trip. I appreciate your excellent customer service and look forward to doing business in the future 701684

- HM47295
by: Larry B.08/16/2019

I have a two axle 6000 lb 16' trailer and a 14000 lb. 20' 2 axle track loader trailer. I am using one of the two trailers a minimum of three days a week. I give this product the highest score possible. I can adjust it to any loadsize simply. 690231

- HM47685
by: Michael08/14/2019

Easy hookup to my 2013 Suburban. Instructions and install video were spot on. Took me less than 1/2 hour and Brake Controller was working as it should. 687064

- HM47685
by: James09/10/2018

Easy hook up. 563545

- HM47295
by: James09/10/2018

Great product works great have had no p roblems. 563544

- HM47295
by: Jeff07/25/2018

Easy to install and works great! 546012

- HM47295
by: Alan06/26/2018

Worked as I expected. I didn't use scotch lock connector as i don"t care for them have had problems in the past. 526962

- HM47295
by: Glenn04/04/2018

Awesome - Shipped super fast, everything was in the box, excellent instructions both in the box and video on web page. 15 min job on a 2011 Chevy Tahoe. 492509

- HM47295
by: Mark H.08/16/2017

Good price, fast shipping and easy inst allation! 420998

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by: Frank R07/11/2017

Products were just what I ordered, but I paid for 3-5 day shipping and received my order three days late. When I open the shipping box one of the packages had not been packed tight and had broken open, spilling the mounting hardware all over the place. Luckily all the hardware had stayed in the shipping box. 404486

- HM47295
by: Gary01/05/2017

Everything working well so far.very good experience working with staff and very helpful installation video. 330043

- HM47295
by: Ody11/29/2016

It was very easy to install and has worked great over the last year. Etrailer had the best price and shipped in very quickly. Overall very satisfied with my purchase. 320638

- HM47295
by: Bruce MYers07/03/2016

Great product, easy to install and has work great for the last year 267822

- HM47685
by: Scott B06/20/2016

Great product , still working after a y ear 262822

- HM47295
by: Daniel05/30/2016

Very complete kit makes installation very easy ! 253940

Everything working just fine, Thanks
Daniel - 01/24/2018


- HM47295
by: R.K. Miller05/11/2016

The brake controller + wiring harness is a good price, but unfortunately the 2016 Subaru Forester is not factory-ready for a brake controller. Had the Subaru dealer install it, which cost $336, but I can go back to them if there are any problems and I wanted to negate any warranty issues with Subaru. Haven't pulled the Ural motorcycle on the trailer yet, so have not had a chance to fool with the power and sensitivity levels. The 7-pin hookup works fine as far as running lights, brake lights and turn signals. 249814

- HM47685
by: Bill Powers03/25/2016

Called and talked to a technician who gave me the part number I needed. It arrived promptly and worked perfect with my brake control. 241619

- HM47685
by: Bryan C.10/02/2015

Great replacement 228912

Show More Reviews

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

  • How Does Brake Controller Install on 2019 Ford F-150 with Factory 4-Way
  • To install a brake controller like the Hopkins Agility part # HM47295 in your 2019 Ford F-150 you'd actually just need the # 37185 which would plug into the 4-way you have at the rear of your truck and then you'd splice the blue wire of the adapter to the blue wire of the harness you can see in the attached picture. Instead of the Agility I would strongly recommend the iCommand part # 5535 as it performs much better and is much more reliable as well. For a Class III hitch part # e98871
    view full answer...

  • Should Vehicle Brake Lights Come On when Using Manual Override on Agility Trailer Brake Controller
  • Yes, the brake lights on your 2009 Kia Sorento should illuminate when the manual override on the Hopkins Agility Trailer Brake Controller part # HM47295 is engaged. It sounds like you have everything installed correctly so I would not be worried at all. If you would like to check the functions of the 7-way and brake controller you have installed without a trailer you can use the 7 Way Trailer Connector Vehicle Tester part # TR20117.
    view full answer...

  • No Power to Brake Controller on a 2012 GMC Sierra
  • Do you have the 12 volt power wire from the wiring harness attached to the fuse box post via a ring terminal? The ring terminal for brake controller power is located directly to the right of the power distribution box. It is taped to a wire harness between the driver-side front fender and the power distribution box. Cut the tape to release it from the harness. Then run the wire to the front of the power distribution box and hook the ring on the left post (M6 stud). I have attached a photo
    view full answer...

  • Agility Brake Controller on 2003 Dodge Ram Not Activating Trailer Brakes Unless Override is Used
  • I'd begin by ensuring that the controller has been installed level, side to side and parallel with the direction of travel and within +70 and -20 of level as shown in the instructions. Make sure the gain or power isn't set at minimum. Use a circuit tester like part # 40376, and test the red wire exiting the rear of the controller. You should show power on that circuit when the brake pedal is pressed. If you're not, have a helper apply the brakes on the truck while you watch the third
    view full answer...

  • Owners Manual for the Hopkins Agility Trailer Brake Controller HM47295
  • The owner's manual for the Hopkins Agility Trailer Brake Controller part # HM47295 has been attached to this answer page for you free of charge both via an attached photo and link. If you have any specific questions about this brake controller please just let me know and I will do my best to answer these for you.
    view full answer...

  • Brake Controller Installation- 2000 Gulf Stream Motorhome
  • Some motorhomes will have a connector under the dash for installing the brake controller, like the Ford F53 chassis, for example. If you have the Ford F53, you'd use the # 3035-P wiring adapter to connect the brake controller to the connector, a simple plug and play installation. If your motorhome doesn't have the connector, you'd need to hardwire the controller. How this is done will depend on what trailer connector is installed. If you have a 4 pole, you'd use the # ETBC7 install
    view full answer...

  • What Does SC Message Mean On Hopkins Agility Brake Controller, # HM47295
  • On the Hopkins Agility Brake Controller, # HM47295, the message is actually SC, which means short circuit. First, you will want to check the blue wire for a short by severing the connection of the blue wire at the brake controller. You will want to leave enough wire to reattach the blue wire after testing. If you step on the brakes after severing the blue wire and you still get the SC reading, then the red stoplight switch wire is the problem. The red wire needs to attach to the stop
    view full answer...

  • Troubleshooting Hopkins Trailer Brake Controller That Does Not Show Connection to Vehicle
  • If applying the manual over-ride lever on your Hopkins trailer brake controller, such as the Agility # HM47295, sends brake power back to your Tundra's 7-way then you know the circuit is functioning. You can test by having a helper press the lever (with the controller set to maximum output) while you apply a circuit tester like # 40376 to the trailer brake circuit's pin, the one at the 5:00 position as you view the vehicle socket. Please see the linked photo. If your test indicates brake
    view full answer...

  • After Replacing Brake Magnets Trailer Brakes Are Weak
  • Nine times out of ten, the issue is that the brakes need to be adjusted. You will need to adjust the brakes out to where you can hear a slight but constant drag of the pads on the drums. If the brakes are properly adjusted then it could be that the new magnets are not the right size for the brake assemblies or the assemblies themselves are not rated high enough for the 12K axles. For 12K Dexter axles you should be using # 23-442 for the left side and # 23-443 for the right side. Check
    view full answer...

  • No Trailer Brakes with Brake Pedal Pressed on a 2007 Chevy Silverado Classic
  • On a brake controller the red wire is associated with the brake pedal. Use a circuit tester such as # 40376 to test the red wire. It should show power when you step on the brake pedal. If it does not have power then you could have a blown stop light or CHMSL fuse. It could also be that the red wire is not in the correct position for your 2007 Chevy Silverado Classic. Then end that plugs into the truck should look like the picture I have included. If the red wire is in a different position
    view full answer...

  • How To Install a Brake Controller On a 1995 Dodge Ram 2500 Without Plug
  • If you do not have the factory brake controller plug on your 1995 Dodge Ram 2500 then you will need to hardwire a brake controller to the vehicle. I recommend the Hopkins Agility Trailer Brake Controller part # HM47295 because it has multiple sensitivity levels so you can fine tune your braking and it also comes with a lifetime warranty. The B+ wire that you referenced is most likely for 12 volt power and will need to be attached to the black wire. The red wire will need to be attached
    view full answer...

  • Hopkins Brake Controller Does Not Sense Trailer When Connected to a 2012 Chevy Silverado with ITBC
  • If the trailer has an electric over hydraulic braking system, then the Hopkins controller, # HM47295, will not work. You will need a compatible controller like the P2, # 90885, which has an electric over hydraulic mode. I have included a link to the instructions for you. If you just have regular electric brakes then the issue could be that the controller you have is not mounted properly (see instructions) or you need to turn up the power level on the controller. Being tilted too far
    view full answer...

  • No Power to Trailer Brake Controller on a 2013 Chevy Silverado
  • You probably need to make some connections under the hood of your 2013 Chevy Silverado to make everything fully functional. This is common of Chevy and GMC trucks. First, you will want to consult the vehicle owners manual and/or power distribution box lid for the locations of the fuses that power a brake controller. I am willing to bet that the spot for power to the brake controller is empty or the power wire is not attached to the front of the box. I have included links to a couple of
    view full answer...

  • Troubleshooting the E2 Error Code on a Hopkins Trailer Brake Controller
  • I recommend reconnecting the power wire to help with troubleshooting. The E2 error code on your Hopkins brake controller indicates a short to the brake output wire between the brake controller and the trailer brakes. Check the splice at the brake assemblies. If it came loose or allowed water to get in there, that could cause a short or power interruption. Then, check the brake output wire on the trailer for any possible pinches or cuts. If the wire looks good, look at the brake magnet.
    view full answer...

  • Troubleshooting Curt Triflex Brake Controller that Shows Voltage on Display When Brakes are Applied
  • Sounds like the controller is thinking that a trailer is connected when there isn't one and that is why the display is reading a number. When the brakes aren't applied what does the display read? If it's a single dot then the controller does not detect a trailer. If there are two dots then a trailer is detected. That would indicate that the brake output circuit somewhere on the vehicle has a short somewhere that is putting a slight load on the circuit - which is telling the controller
    view full answer...

  • Hopkins Agility Brake Controller Showing Output Without Brake Pedal or Manual Brake Switch
  • By 'when power is applied', I'm assuming you mean that's what the display is reading when the controller is at rest. If you're getting the 85 with the brake pedal or the manual brake switch applied, that's normal. The 85 is the amount of output the controller's been set to, out of 100. The controller will continually send out 4-6V of power out to determine if a trailer's connected. If you're getting more output than that on the blue wire without the brake pedal being applied or the flex
    view full answer...

  • Hopkins Agility Brake Controller # HM47295 Reads 99 Percent Power When Brakes are Applied
  • I would recommend to make sure that you have the Hopkins Agility Brake Controller, part # HM47295 mounted correctly in your 2006 Dodge Ram truck. The brake controller needs to be mounted from minus 20 degrees nose down to plus 70 degrees nose up and parallel to the direction of the travel. Next, would be to connect your truck and trailer and test drive on a dry open area at low speed (20 to 25 mph). Apply vehicle brakes aggressively. If trailer brakes lock-up, adjust down the power
    view full answer...

  • Troubleshooting Brake Controller Not Working When Brakes Are Applied but Works With Override Switch
  • This sounds like the trailer brakes are not receiving the signal from the brake controller when you apply the brakes. I believe what is happening is that you may have a loose, broken, or inaccurate connection on the red wire from the brake controller. The red wire needs to attach to the stop light switch above the brake pedal. It connects to the wire on this switch that carries a signal ONLY when the brake pedal is pressed. It should not have a signal at any other time. Use a circuit
    view full answer...

  • Troubleshooting Hopkins Brake Controller-Will Only Apply Brakes With Manual Brake Switch
  • When the trailer brakes will operate with the manual brake switch on the controller but not with the brake pedal, it means that the brake controller isn't being 'notified' when the brake pedal is pressed. The red wire exiting the rear of the controller is connected to the 3rd brake light circuit of the truck. If the fuse for this crircuit is blown the controller won't know that the vehicle brakes are being applied. The fuse you're looking for is located in the fuse box under the hood,
    view full answer...

  • How To Wire Brake Controller To Wires Under Dash That Are Cut On 2004 Dodge Ram Factory Tow Package
  • The information that I have indicates that for the 4 wires under your dash, there should be a red-and-tan wire, a green wire, white-and-red wire, and a black wire. You will need to connect the red-and-tan wire to the Black wire of the brake controller. You will connect the green wire to the Blue wire of the brake controller. The white-and-red wire will connect to the Red wire of the brake controller. The black wire will connect to the White wire of the brake controller. To connect the
    view full answer...

  • Installation of Trailer Brake Controller in 2000 Chevy Express 3500 Van
  • The Universal Wiring Adapter for Hopkins Trailer Brake Controllers # HM47685 you asked this from will allow you to connect a wiring harness to your Hopkins brake controller (if that is what you have) to give you the wire leads to splice into your brake light switch and connect your power wire to battery and brake output wire to your 7-way. The ground can be connected to a local ground wire or can be directly connected to your body in a metal on metal location. You will then use kit #
    view full answer...

  • Recommendation for Wiring Adapter for the Hopkins # 47284 on a 2011 GMC Sierra
  • I have good news for your brake controller adapter needs. If you already have the Hopkins # HM47284 brake controller, you will need the universal wiring adapter # HM47685. Also if your vehicle already has the factory 7-way you will most likely have a factory bundle of wires under your dash by your left shin that we can splice into for this brake controller. According to my information the red/black GM wire goes to brake controller black. The white wires go together. The light blue
    view full answer...

  • Wiring Harness to Install Hopkins Impulse Brake Controller in a 2018 Toyota 4Runner w/Tow Package
  • I did some checking and the 2018 Toyota 4Runner uses the same brake controller wiring harness as the previous 2 model years. That means you can use # HM47815 with your Impulse brake controller. But, I actually recommend a different approach because the factory ground on the Toyota tow packages where a brake controller plugs in has proven to be insufficient for many brake controllers. I propose using harness # 3041-P which has a separate ground wire to combat that issue. You would have
    view full answer...

Info for these parts were:

Expert Research:
Michael H
Installed by:
Jeff D
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Alexander C

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