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Hayes Brake Controllers

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Hayes Reviews and Installation Videos


Expert Answers about Hayes

  • Recommended Brake Controller For 2016 Ram 1500
  • The Hayes Brake Controller, part # HA81726 you asked about is a time-delayed controller. A time-delayed controller has a preset intensity and is activated when the brake pedal is pressed on the towing vehicle. The brake controller also has a manual override, and can be mounted at any angle or direction. For your Ram 1500 you will also need the plug-in adapter, part # HA81795-HBC. I recommend the Tekonsha P3, part # 90195. This is one of our most popular brake controllers because it is...
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  • Can a RV with Air Brakes Have an Electric Brake Controller Installed
  • That's actually what we recommend the most for people towing trailers with electric brakes that have tow vehicles with air brakes. Installing a P2 part # 90885 will allow you to totally bypass having to interface with the air system and will work very well. Hardwiring a brake controller isn't too difficult. It basically is just a matter of running a few wires. One to the positive post of the battery, one to the ground, one to the trailer connector, and then one to the stoplight circuit. I...
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  • Recommended Electric Over Hydraulic Trailer Brake Conversion for Dual 10K Axles
  • The Disc Brake Kit # K2R1058D13 by Kodiak is the brake set that you will need to use for your 10,000 lb Dexter Torsion axles. When it comes to hardware, like the brake line, I recommend going with the Kodiak Hydraulic Brake Line Kit # 24TA-BLKIT which will wear better than other traditional brands. These lines are very flexible so the line is easy to maneuver under the trailer. The only downfall is that you cannot cut the line due to how hard and risky it is to do yourself. All you have...
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  • Brake Controller in a Volvo 780 VNL Semi for Towing Trailer with Electric Brakes
  • Since your Volvo 780 semi has air brakes the part # HA100400C that you referenced would work well as it is designed to tap into your air brake system and apply a proportional amount of braking power to your trailer's brakes as it senses coming through your air brake system. If you are looking for the best option this is what I would go with as it's going to give you a way to apply the same amount of pressure as your semi brakes are applying.
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  • How to Complete Hardwire Installation of Hayes Synchronizer Brake Controller
  • I'd be happy to assist with that. In addition to the # HA81725 Hayes Synchroinizer brake controller, you'll need a universal wiring harness, part # HA81789-HBC and our Brake Controller Installation Kit, part # ETBC7. The kit includes everything necessary to install a brake controller in your vehicle, with the exception of the controller itself and a 4-pole trailer wiring harness for the vehicle. If you click the provided link, you can see some FAQ articles about installing a brake...
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  • Troubleshooting OC Code on a Hayes Genesis Brake Controller
  • You wired up your Hayes Genesis Trailer Brake Controller # HA81790 properly to your 2006 Toyota Tundra. The problem is most likely at the 7-way connector at the rear of your vehicle (if there is one). OC would mean open circuit, which means that the trailer is not connected. The brake controller does not recognize a connection to the trailer. On some brake controllers it will also show OC if you are using a brake controller with an electric over hydraulic braking system on your trailer...
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  • Recommended Brake Controller for Tow Vehicle with Air Brakes
  • For your 2015 F650 tow truck with air brakes, I recommend the Hayes Air Actuated Trailer Brake Controller - 1 to 4 Axles - Proportional # HA100400C. This controller senses the amount of pressure applied to your brakes and then smoothly applies the trailer brakes in proportion. It has the slide bar manual override and will work on trailers with up to 8 brake assemblies. I've attached a review video and installation instructions to assist.
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  • Will Hayes Electronic Sway Control System Work With GM Vehicles With Integrated Brake Controller
  • The Hayes Sway Master Electronic Sway Control System, part # HA81775 will work with your enclosed snowmobile trailer. If you have an integrated brake controller on your GM vehicle I am sorry but they will not be compatible. There are some GM vehicles, either Chevrolet or GMC that have tow packages without the brake controller and the # HA81775 would work. So, bottom line is if you have a GM vehicle with an integrated brake controller the electronic sway control system will not work...
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  • Will the Hayes Electronic Sway Control System Part # HA81775 Work with Factory Brake Controllers
  • I called my contact at Hayes about the Hayes Sway Master Electronic Sway Control System part # HA81775 and they stated that they do not recommend using the above device on any vehicle with a factory integrated brake controller. Therefore no, the Hayes Sway Master Electronic Sway Control System will not work on your 2015 Ram 2500 with the factory brake controller. In order to use this device on your 2015 Ram 2500 you will need to replace the factory brake controller with an aftermarket...
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  • Sway Control for Raised Tandem Axle Trailer that has Weight Distribution
  • Short of replacing the weight distribution you already have to one that includes sway control the Hayes Sway Master Electronic Sway Control System # HA81775 is a great choice. Since it can be installed virtually anywhere on your trailer, and is so easy to install, it makes it extremely versatile. It uses a gyroscope to sense movement in the trailer and applies the trailer's brakes when necessary to keep it in line with your Jeep. It also uses GPS to detect your speed and determines how...
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  • Flashing OC Code on Hayes Genesis Trailer Brake Controller When Vehicle is Off
  • A brake controller like your Hayes Genesis # HA81790 displays the "OC" message when there is an open circuit, which simply means that the trailer is not connected or the controller does not recognize a connection to the trailer. Since it is coming on when your vehicle is off, I recommend checking the vehicle and trailer connectors for any dirt or corrosion that could be causing this message to appear. Also, simply sliding the manual override on the brake controller all the way, then...
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  • Installation Of Hayes Air Actuated Trailer Brake Controller
  • The Hayes Air Actuated Trailer Brake Controller - 1 to 4 Axles - Proportional # HA100400C mounts to the inside of your 2007 Nemar Essex at the dash just like other electric brake controllers will. It needs to be installed on the inside of the vehicle for proper function. It has a slide bar override that needs to be within reach for emergency trailer braking. The wiring connects just the same as an electric brake controller. Blue is trailer brake output, red is stop light swith, white...
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  • Troubleshooting Cruise Control Not Working After Brake Controller Install
  • Sounds like you connected the red (stoplight switch circuit) wire to the wrong circuit on your truck. When the cruise control on a vehicle starts acting up that is a tell-tale sign that the wrong circuit is being used for the red wire. What you want to do is use a circuit tester like part # PTW2993 to test the wires near the brake pedal to find the circuit that only sees 12 volts when the brakes are applied and none when the brakes are released. Correcting this should take care of both...
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  • Installing an Electric Trailer Brake Controller in a 2018 Chrysler Pacifica
  • Since you already have a 7-way trailer connector and a brake controller all you should need is the adapter to connect the controller. That's assuming the 7-way is factory installed. If you've installed it yourself, or had it installed aftermarket let me know. If it's a factory 7-way there's going to be a connector under the dash above the steering column not far from where it goes through the firewall. The connector you're looking for probably has a green cover over it. Once you...
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  • Does Computer have to be Flashed to Install a Brake Controller in a 2016 Ford F-150
  • You will not have to flash the computer on your 2016 Ford F-150 to install the Hayes Genesis brake controller # HA81790. I do recommend using the vehicle specific wiring harness # HA81794-HBC instead of a universal one that you would have to splice into the Ford harness. If you use the vehicle specific harness you can just plug the controller straight into the truck without having an intermediate harness between the 2.
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  • How Does Brake Controller Install in 2018 Chevy Colorado
  • Your 2018 Chevy Colorado has the brake controller wiring ran under the dash of the truck but there isn't an adapter that uses a connector. Reason being there's only 4 blunt cut wires under your vehicle dash for the brake controller wiring and not a connector of any type. To install the Hayes controller part # HA81760 you need the Hayes universal connector part # HA81789-HBC to run to those wires. I attached an install video that shows a similar brake controller installed in a 2018 Chevy...
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  • Recommended Brake Controller and Wiring for a Semi Trailer
  • The Hayes Air Actuated Trailer Brake Controller part # HA100400C and the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 will both work on your semi, they just operate in different ways. The Hayes controller will apply force to the trailer brakes relative to the how hard the brakes in the tow vehicle are depressed whereas the Prodigy P2 will apply force to the trailer brakes relative to the deceleration of the tow vehicle. I recommend using the Tekonsha Prodigy P2 because it is...
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  • Troubleshooting Brake Controller that Activates Truck Brake Lights Randomly
  • The problem is either the wiring of your brake controller or the brake controller itself has internal problems. What it sounds like is happening is that the stoplight switch of your brake controller (usually red) is backfeeding onto the brake light circuit of your 1997 Dodge Ram which is activating the brake lights of your truck. This would indicate that the controller has shorted out and would need to be replaced. I attached an FAQ on brake controller installs for you to check out as...
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  • Troubleshooting Trailer Brakes That Intermittently Lock Up With any Brake Pressure
  • Sounds like the problem is on the trailer's wiring as the issue you are having has shown up with two different tow vehicles. The most likely situation you have is that your brake light circuit is shorting out to your brake output circuit which is causing your trailer brakes to apply fully when the brakes are applied. Do you notice the brakes applying or locking up when the blinker is applying as well? If so, that blinker circuit on your trailer wiring is shorting to the brake output...
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  • Troubleshooting Hayes Genesis Brake Controller That Applies Minimum Braking During Sudden Stops
  • It sounds like your Hayes Genesis Brake Controller # HA81790 is not sensing the deceleration of your truck and trailer so it is not applying more than the minimum braking power when you apply the brakes. During sudden stops you should see the controller the maximum braking power you designate. This typically means that your brake controller is not mounted correctly. Because this controller operates with an internal inertia sensor, it must be mounted between -35 degrees and 90 degrees...
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  • Error Code Explanations for the Hayes Genesis Brake Controller part # HA81790
  • I attached a picture that I took from the installation instructions for the Hayes Genesis Brake Controller part # HA81790 that shows what the various codes mean and the possible causes for them.
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  • How to Install and Remove the Connector on Hayes Universal Wiring Adapter # HA81789-HBC
  • The Hayes Universal Wiring Adapter # HA81789-HBC that you referenced is intended to plug into the back of a compatible Hayes brake controller such as their Genesis # HA81790 and then hard-wire to your vehicle using the 4 wire leads. The plug portion on the adapter is not intended to mate with any connectors on your 2007 Dodge Ram 2500 Pickup. There are other brands of brake controllers that do use adapters with plugs on both ends, one for the controller and one for the vehicle, such...
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  • What Does a CL or cl Code Mean on a Brake Controller
  • I did some research and found that on some brake controllers, the "cl" code stands for Current Limit. This indicates that the brake controller has sensed a power requirement greater than its recommended output. This could result from an intermittent short to ground, a faulty brake magnet, or too many brakes connected to the controller. Some brake controllers like the Hayes Engage, # HA81760, are designed for 2 - 6 brakes (up to 3 axles). But others like the Hayes Synchronizer, # HA81725...
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  • Troubleshooting OC Error Code on Hayes Engage Trailer Brake Controller HA81760
  • With the Hayes Engage Trailer Brake Controller # HA81760 the code OC indicates that the controller does not sense an electrical connection to the trailer brakes, or that the trailer has electric-over-hydraulic brakes which do not work with this unit. Since you also have an issue with your tail lights staying on the problem is almost surely corrosion inside the trailer connectors. Corrosion can build up inside a vehicle's socket and inside a trailer's plug and sometimes it is hard...
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  • Where Does Stoplight Circuit Get Sourced for Install of Hayes Brake Controller HA100400C
  • Actually when you wire in the Hayes Brake Controller part # HA100400C you use the vehicle's wiring and not the trailer wiring. You would need to find a stop light circuit for the red wire of the controller. Typically this is found at the brake pedal switch or in some case the wiring to the third brake light is used. I attached a help article on brake controller installs for you to check out as well.
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  • Installing Hayes Energize III Brake Controller on 2012 Chevrolet Silverado
  • To install your Hayes-Lemmerz Engerize III 81741B in your 2012 Chevrolet Silverado, you will want to use the Hayes Universal Wiring Adapter # HA81789-HBC. This universal adapter will need to be hardwire installed for your Silverado. Hayes does not offer a wiring harness that will plug into the brake controller port under the dash, if your truck has one. I have attached a help article on installing a brake controller in a 2007-2013 Silverado for you. This help article will walk you...
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  • Troubleshooting Hayes Engage Brake Controller Showing BF Error Code
  • According to the operating instructions (I'll email you a copy) the bF error code indicates that there's a short somewhere in the brake output circuit, which is the blue wire that exits the rear of the controller and delivers the voltage to the trailer brakes through the trailer connector. Several things might be causing this. The first thing you will want to do is sever the blue wire from a few inches behind the brake controller. Leave enough wire so you can reconnect it later. Then...
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  • What Angle Does the Hayes G2 Brake Boss Have to Be Installed at for Proper Function
  • The Hayes G2 Brake Controller part # HA81792BB has to be installed in a specific angle range otherwise the proportional sensors of the controller will not accurately be able to sense braking activity and apply the correct amount of braking power to the trailer. If the controller being totally level and squarely facing the rear of the vehicle it is 0 degrees, then 94 degrees would be slightly past totally vertical and -35 degrees would pretty close to the middle of facing directly at...
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  • Troubleshooting Hayes Syncronizer Trailer Brake Controller
  • That is not normal. The Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed # HA81725 should not give off any smell and should not be activating the brakes enough to cause smell if installed and adjusted properly. I've attached a video of this installation for you to reference. When installed correctly, this unit should be adjusted for sensivity. This conroller has a red LED indicator on front of unit that illuminates when trailer's brakes are applied. This...
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  • Brake Controller on Tow Vehicle with Air Brakes
  • The Hayes Air Actuated Trailer Brake Controller # HA100400C is designed to be used with a tow vehicle that has air brakes. However, that doesn't make it your only option. Electric brake controllers tie into the stop light switch of the tow vehicle so it doesn't matter what type of brakes it has. For an electric brake controller I suggest the Prodigy P3 # 90195 because it's one of the most reliable and easy to use brake controllers on the market.
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