Popular Brands By Category

Towing

Sports & Recreation

Trailer

Vehicle

RV & Camper

What our customers are saying:

Very Fast shipping, looks like I can finish this weekend. Thanks.

Mark

Stewartstown, PA

Hayes Brake Controllers

Hayes





Hayes Reviews and Installation Videos


Expert Answers about Hayes

  • Constant Power to Trailer Brakes and Red Light Always On the Brake Controller
  • It sounds like there is a short to the blue wire (brake output) on the brake controller. This can be caused by corrosion in or behind the vehicle and trailer side connectors. Power from the 12 volt circuit at the vehicle side connector could be jumping to the brake output circuit. This would make the brake controller think there is power being applied and when the trailer is connected it can send full power back to the brakes. To eliminate the brake controller as the problem, cut the...
    view full answer...

  • Instructions for Adjusting the Hayes Energize Brake Controller when Red Light Does Not work
  • The red light on the Hayes-Lemmerz Energize Electric Trailer Brake Controller, item # HA81745 should not illuminate until the brake pedal is pressed or the manual lever is activated. You may need to readjust the brake controller. This could happen because the brake controller position in the mount has changed or because the trailer weight has changed affecting the the ride height of the vehicle. If this does not solve the issue and the trailer brakes are not functioning properly you will...
    view full answer...

  • How to Set Up the Hayes Energizer Electric Trailer Brake Controller
  • I would be happy to explain how to set up the Hayes Energizer Brake Controller, # HA81745. First, park the truck and trailer on a dry level surface. Next, adjust the gain wheel to the middle setting. Then, you will need to travel at about 25 miles per hour or less and step on the brakes like in a normal breaking situation. The red indicator light should light up from dim to bright during the stop and revert back to dim after the stop is completed. If the trailer brakes lock up, decrease...
    view full answer...

  • 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...
    view full answer...

  • Installation Location of Hayes Sway Master Electric Sway Control
  • The Hayes Sway Master Electronic Sway Control System # HA81775 has installation instructions that do not give a placement location other than completely unobstructed view of the sky. The unit comes with a 5 foot wiring connection so your options are limited with your trailer. There is nothing that would limit you from the placement you show in the photo based on the instructions given from the manufacturer.
    view full answer...

  • 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...
    view full answer...

  • Brake Controller Installation on 2008 Grand Cherokee Diesel
  • According to my contact at Tekonsha, there is not any special procedure or considerations for a brake controller installation on Diesel equipped models versus the gas-engined counterparts. To install your brake controller, you will look for a light green wire bundled up under the dash or behind the drivers side kick panel that would be next to your left foot while driving. This wire will connect the brake controller output (blue wire) to the 7-way. The power (black wire), ground (white...
    view full answer...

  • 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...
    view full answer...

  • Troubleshooting a Hayes Energizer Brake Controller with Trailer Brakes Not Working
  • You do not have to have your trailer connected to your vehicle when testing the brake controller. Also, when testing the brake controller make sure that the gain is adjusted high enough to give a correct brake signal. You are correct in that you will need to test the blue wire that is the output wire to your brake controller. I recommend using a circuit tester like the Quickee # 3808 to test the wiring both the input and the output side of the blue brake controller wire. I also recommend...
    view full answer...

  • Is Red Light on Hayes Trailer Brake Controller Supposed to Light Up with Brake Pedal and No Trailer
  • I spoke with my contact at Hayes and on the Energize controller, # HA81745, the red light will come on when you step on the brakes with the trailer connected or not. Also, you should see some brightness variation in the light. The best way to test it is to use the manual override lever and see if the light gets bright when on full and dimmer as you release the lever. If it does not, use a circuit tester like # 3808 if needed to test the voltage output at the 7-Way connector while someone...
    view full answer...

  • 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...
    view full answer...

  • 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.
    view full answer...

  • How To Install Energize Electric Brake Controller # HA81745 Without Adapter On 2006 Ford F-150
  • If your 2006 Ford F-150 came with a factory 7-Way, then you can use part # HA81783-HBC, to connect your brake controller to the brake controller plug located under the dash. The plug should be located under the steering column, to the right of the steering wheel, towards the center of the dash. If your Ford F-150 just has a 4-way connector, you can use part #20260 but there are a few other connections needed to be made. In addition to part # 20260 you will need to install, Brake Controller...
    view full answer...

  • 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...
    view full answer...

  • No Power To Trailer Brakes When Using Manual Slide Switch on Hayes Brake Controller # HA81745
  • The brake controller should be getting 12 volts of power through the Black wire. You will want to use a multimeter like part # BTMT15 to test this wire for voltage. The Blue wire should have near 12 volts when the manual slide is activated. You will also want to make sure the gain on the brake controller is not set all the way down. If you are not getting power leaving the Blue wire, the brake controller may be bad and will need to be replaced. I would begin by making sure you have the...
    view full answer...

  • What is Needed to Install a Brake Controller on a 1987 Ford F-250
  • To install the Hayes-Lemmerz Energize Electric Trailer Brake Controller, # HA81745, there are a couple of things you are going to need. Besides your brake controller, you will need 2 wiring harnesses. First, if your vehicle does not already have a 4-way connection, you will need the Tow Ready Custom Fit Vehicle Wiring, # 118316. I have included the instructions and two videos that feature this harness. Next, you will need Brake Controller 7 and 4 Way Installation Kit, # ETBC7. I have...
    view full answer...

  • Troubleshooting Hayes Brake Controller that LED Stays On All the Time
  • The Red LED indicator on the front of the controller # HA81745 should only be on when the trailer brakes are being applied. The first thing to check is that the red wire of the controller is attached to a circuit that only sees 12 volts when the vehicles brakes are applied and none when released. It sounds like there is a short to the blue wire (brake output) on the brake controller. This can be caused by corrosion in or behind the vehicle and trailer side connectors. Power from the...
    view full answer...

  • Wiring Needed to Install a Brake Controller in a 2001 Ford F-250
  • If your 2001 Ford F-250 has factory installed 7-Way you will need to add Brake Control Wiring Adapter, # 3035-P. If you have factory 4-Flat, you will need Ford Replacement OEM Tow Package Wiring Harness, # 118243, in addition to the wiring harness above. I have included a link to the instructions for this harness below. I have also included helpful FAQs that discusses, in detail, wiring a vehicle for a brake controller that you might find helpful.
    view full answer...

  • 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.
    view full answer...

  • Items Needed to Install a Brake Controller on a 1996 Chevrolet C/K 1500 Pickup
  • As long as you have an existing 4-Way trailer connector at the rear of your 1996 Chevrolet C/K pickup you will have all of the parts needed to install a brake controller. The # ETBC7 kit includes all of the wiring circuit breakers and connectors needed. If you do not have an existing 4-Way connector you can use the 4-Pole Hardwire Kit Including Circuit Tester, item # 18252, to hard wire the 4-Way to the wiring going to the truck tail lights (see instructions link). You will need a circuit...
    view full answer...

  • Troubleshooting a Hayes Energizer Brake Controller # HA81745 Lighting Dimly All the Time
  • The light that you are seeing is an indicator for how much braking power is being applied. The brighter the light, the more power is being applied. It sounds like the pendulum arm on the left side of the Hayes-Lemmerz Energize III Brake Controller # HA81745 needs to be adjusted. You need to align it with gravity, in other words, it needs to point straight down. If the lever arm is too far forward, the indicator light will stay lit. Here are the steps for proper setting of the pendulum...
    view full answer...

  • Installing a Trailer Brake Controller on a 2013 Chevy Silverado
  • The wire colors on the tow package wiring on your 2013 Chevy Silverado will not match up color for color. You have to go by function. The wires under the dash should have been held together with a white tag listing their functions. If so then you just have to attach the brake controller wiring as follows: White is ground Black is 12 volt power Red is input from the brake switch Blue is output to the trailer brakes If the wires do not have the tag indicating their functions the...
    view full answer...

  • Ball Plate too Large for Trailer Frame with Husky Sway Control
  • Unfortunately the ball plates we have that would work with your system are the same dimensions as your current plate, which would be too wide for your frame.
    view full answer...

  • Hayes Brake Controller Installation in 2008 Chevrolet Suburban
  • The linked FAQ article on brake controller installation in GM vehicles including your 2008 Suburban indicates that there are two power connections to be made for providing both brake controller operating power and 12V trailer auxiliary power at the 7-way trailer connector. Our experience tells us that the two nuts required are not included by GM and need to be sourced locally or from etrailer. They are M6 nut part # 185916 and M8 part # 185917. The two wires have different-diameter...
    view full answer...

  • Parts Needed to Install a Trailer Brake Controller on a 2012 Jeep Liberty with Factory 7-Way
  • At this time there is no plug in simple type of connector for a brake controller but I can tell you how to install one on your 2012 Jeep Liberty with the factory 7-Way. First you will need a brake controller. I recommend the P2 # 90885. It is one of the best selling controllers of all time because it is easy to set up, easy to use, works well, and has good longevity. You will need to do a little hardwiring to install it. On your Jeep there should be a light green wire either behind...
    view full answer...

  • 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 # 3808 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...
    view full answer...

  • 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...
    view full answer...

  • Will Hayes Custom Wiring Harness for Electric Brake Controllers Fit a 2016 GMC Truck
  • Yes, the Hayes Custom Wiring Adapter # HA81798-HBC is the correct wiring harness to connect a Hayes electric brake controller into a 2016 GMC Sierra 1500, 2500, or 3500. I've linked our selection of Hayes brake controllers, as well.
    view full answer...

  • How to Install Hayes-Lemmerz Energize Brake Controller on 1986 Chevrolet C/K Series Pickup
  • To add electric trailer brake control to your 1986 C/K Pickup you will use the brake controller and installation wiring kit that you already have, and you will also need a 4-pole trailer connector if your vehicle does not already have one under the rear bumper. The attached FAQ article details the required components and installation steps. If you need a 4-pole trailer connector, you can use part # 118312. This plugs into your tail light wiring without cutting or splicing and provides...
    view full answer...

  • 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...
    view full answer...





^
About Us
photos and videos
1,056,204

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.

installations
35,570

Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center
2,476,511

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training
400+

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service
71

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts
193,357

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.