How to Install Trailer Brake Controller?

Trailer brakes are important safety features on cars, and they prevent the vehicle from rolling away after stopping. It's important not to install them incorrectly, they might fail or even cause damage to your car.

Trailer brakes are electronic devices that control the braking system of a vehicle. The brakes are activated when the driver presses the pedal. This locks the wheels and prevents them from turning. This stops the vehicle from moving forward.

There are two types of trailer brakes: mechanical and hydraulic. Mechanical brakes are operated manually using a handbrake lever, and hydraulic brakes are controlled electronically, and both types require installation by a professional mechanic.

What is a Trailer Brake Controller?


Trailer brakes are a necessary precautionary measure for slowing down and putting a trailer to a halt.

Tools you'll need for trailer brake controller installation include screws, screwdriver, connector, nipper, and brake controller.

Choose an appropriate place to install the controller and drill holes in the right spot.

Connect wires from the brake junction box to the controller through cables.

Trailer brake controllers are used to control the speed of a trailer on a towed vehicle.

Trailer brake controllers operate through the use of blue and black wire.

Testing the trailer brake controller is the final step in its installation.

Trailer brakes are used to slow and stop a trailer.

Trailer brake controllers use hydraulic pressure to apply the brakes to the wheels.

Most trailers have two brake controllers - one for the front and one for the back.

Trailer brake controllers are usually mounted on the rear of the trailer near where it connects to your vehicle's axle(s).

Using the trailer brake controller, you can apply pressure to both front and back brakes simultaneously during braking, preventing skidding or loss of control when braking on a long downslope or making a sharp corner.

What are the Benefits of Installing a Trailer Brake Controller on Your Vehicle?

Towing a trailer with a trailer brake controller allows a vehicle to stop more quickly. It is installed in the vehicle's rear and used by reversing the braking system to reduce stopping distance.

With this device, you can stop your vehicle more quickly than if you were using your foot on the brake pedal. This device also ensures that you are safe from any accidents while towing.

Trailer brakes are usually installed on vehicles with large trailers, but they can be installed on almost any type of vehicle. Installing this device is not difficult at all, and it saves money and time because it will prevent accidents while towing.

How to install a trailer brake controller?


Trailer brakes are a common feature on travel trailers and fifth-wheel trailers. They are used to limit the speed of a trailer if the trailer is traveling too fast, and this is crucial when traveling at high speeds on the road.

Only install a brake controller if you know what you're doing.

If you know how your vehicle's wiring works and are confident in installing a new harness, installation should be fairly easy.

Check around for service shops, trailer stores, or family mechanics to find the best installation prices for your vehicle and RV.

To install a trailer brake controller, you need a reliable OBD2 device.

You can use the featured devices below or the OBD2 USB adapter.

For coding modifications, we recommend using the OBD2 USB adapter.

Trailer brake controllers can be used to help drivers stop trailers safely.

If the trailer is being towed, the brakes should be applied at least 10 feet before touching the ground.

Use a low gear, drive slowly, and use an approved braking system if towing a cargo trailer.

Always wear your seatbelt while towing a cargo trailer.

Step 1: Disconnect the negative battery cable

Disconnect the battery during brake controller installation to avoid personal injury and electronic damage.

Using a factory power feed terminal, connect the power feed wire to your brake controller unit.

Finally, reconnect the negative battery cable.

Disconnect the negative battery cable

Unplug the brake controller

Disconnect the wiring harnesses from both the brake controller and motorcycle

Remove the bracket that holds the brake controller to the bike.

Remove the brake controller.

Step 2: Determine where to mount the controller.

The controller is generally mounted on the underside of the desk or table and is held in place with a set of bolts.

Where to mount the controller should be determined based on the vehicle.

The brake controller can be mounted below and off to the side of the steering wheel or above the dash.

When installing a brake controller, ensure RF transmitters are not close to sensitive electronics.

Attach to the dash, drill mounting holes, fasten into place, and connect with the appropriate harness.

Step 3: Drill mounting holes

The brake controller bracket will require drilling mounting holes. Mark those locations.

Drill holes for fasteners included with the bracket.

Attach the brake controller to the bracket with bolts and screws, and power the unit via a factory power feed wire.

Connect the negative battery cable

Mount the brake controller by drilling mounting holes on the back.

Insert screws into mounting holes and tighten them with a wrench.

Connect wiring to the screw terminals on the brake controller and plug in your power supply.

Test your installation by pressing the pedal and checking that the brakes are working properly.

Step 4: Fasten the brake controller into place

Disconnect the negative battery cable

Drill mounting holes for the bracket

Fasten the brake controller into place

Plugin the brake controller with a custom wiring harness

Check to make sure the brake controllers are properly installed and working.

Fasten the brake controller into place

Test the brakes

Step 5: Plug in the brake controller

Disconnect the vehicle's negative battery cable

Drill mounting holes for the bracket

Fasten the brake controller into place

Plugin the brake controller with a custom wiring harness

Check to make sure the brake controller is plugged into the tractor.

Press and hold the brake pedal until the tractor comes to a complete stop.

Release the brake pedal slowly.

How to install a trailer brake controller on a Toyota tundra?


A trailer brake controller can be installed on a Toyota Tundra by following the wiring harness provided.

Brake controller installation can cost between $940 and $1,650, depending on the make and model of the trailer brake controller.

The connector for the wiring harness is located underneath the dash in a difficult-to-see location.

Trailer brake controllers are necessary for the safety of both you and your passengers in case of a sudden stop.

Trailer brake controllers vary in price, but most cost around $200.

To install a trailer brake controller on your Toyota Tundra, first, remove the camper shell.

Next, locate the wire harnesses that run from the trailer to the tow vehicle and unplug them.

Remove all electrical connections between the controller and mounted hardware (such as lights or horns).

After removing the screws, remove any weather stripping around this hole and set it aside for later installation.

Install the controller in the same location as the original wiring, using screws that were previously removed.

Reinstall any hardware that was removed and plug everything back in.

Reconnect all electrical connections and test the system before you go camping.

How to install  trailer brake controller on the 2012 Silverado?

Vehicles are connected to trailer brake controllers through the vehicle's braking system.

Older systems requiring hydraulic lines are tapped into the vehicle's brakes, but that is no longer necessary.

As with the vehicle, trailer brake controllers offer an instantaneous braking response when you stomp on the brakes.

When you are cruising gently to a stop, you rarely use the trailer brakes. Installing proportional controllers is harder since they must be mounted within specific angles and adapted to the vehicle.

Installation of a trailer brake controller is necessary on all 2012 Silverado models.

A proper brake controller costs less than $100 and is an excellent investment for those who haul a lot with their trailers.

NAPA's 17,000 locations nationwide can help you install your trailer brake controller.

How to install trailer brake controller on Ford F150?

Only install your brake controller yourself if you know what you're doing.

Installing your brake controller should be relatively straightforward if you are familiar with the wiring of your vehicle.

Check around for service shops, trailer stores, and family mechanics to find the best installation prices for your vehicle and RV.

The trailer brake controller is a device that ensures the same amount of pressure is applied to the truck and trailer.

You need an OBD2 scanner and a reliable device to operate it to use the controller.

Trailer brake controllers can be installed on a Ford F-150 using the following steps:

It is usually near the rear of the vehicle, just behind or below the rear axle.

Disconnect power to both trailers by plugging at each end of their respective connector cables.

After plugging into one end of the cable and disconnecting both trailers, push down on the other end until you hear a "click." Repeat this step for the other trailer.

Reconnect power to both trailers by plugging at each end of their connector cables, then close your truck's boot.

Test your brakes by pulling on one of the trailers until it comes to a stop. You'll hear two identical clicks if everything is working properly as the trailer brake cylinders engage and disengage.

How to install trailer brake controller 2016 ram 1500?

Trailer brakes are operated by a magnetic piston, similar to emergency brakes.

Located in several locations, trailer brake controllers are connected to the vehicle's braking system.

They can be proportional or time-delay controlled and operate similarly every time you press the pedal.

Trailer brakes are a must for hauling heavy loads.

A trailer brake controller is a cheap and easy way to improve safety when towing a trailer.

Install the brake controller at your own risk if you don't have the proper equipment.

How to install trailer brake control unit on the truck?

Trailer brake controllers or TBCs allow truck owners to synchronize their vehicle and trailer brakes.

Most trailer brake control units require a wiring diagram, but it depends on the make and model of the truck.

Trailer brake control units are usually connected to a trailer's brakes by cable or wirelessly.

Trailer brake control units help reduce traffic light stops and other obstructions while driving with trailers, increasing safety.

How to install an electric trailer brake controller?

Trailer brakes are necessary precautions for trailers and can help prevent accidents.

To install a trailer brake controller, have the following tools: a connector, screws, and screwdriver.

Choose between time-delayed controllers or proportional controllers for your towing needs.

Drill two holes where you'll be mounting the controller and installing the bracket.

Under the steering wheel, connect 4 white, black, green, and red cables to your trailer brake controller's junction box (or any colors that match the trailer wiring).

Install a brake onto your trailer according to manufacturer instructions and enjoy safer rides!

Trailer brake controllers are designed to help prevent trailer accidents.

The blue wire connects the trailer connector to the car and charges the battery.

The black cable operates the brake controller screen while the red wire displays its number.

Testing is required before use to ensure proper function.

Trailer brake controllers are devices that help control a trailer's speed.

Trailer brake controllers come in several different types, each with advantages and disadvantages.

To install a trailer brake controller, you'll need to determine which type is best for your needs.

Next, you'll need to install the controller unit into your vehicle's electrical system.

Finally, you'll need to set up the controller's settings by following the instructions provided by the manufacturer.

How much does it cost to install a trailer brake controller?

Proper, professional brake controller installation can set you back anything from $500 to $700.

The proper functioning of the unit is crucial for your safety and the safety of other drivers.

If it is not attached properly, its readings may be faulty, which can be disastrous on the open road.

Do you need a brake controller if you have a tow package? Generally, two packages don't include controllers but will provide:

  • A hitch platform.
  • Transmission and engine cooling.
  • A sturdy frame to mount the hitch.
  • A towing wiring harness.

Trailer brake controllers are available at a variety of prices and styles.

Some trailer brake controllers monitor trailer brakes and warn the driver if they fail.

Professionals and DIYers can install trailer brake controllers.

Trailer brake controllers can also be retrofitted to older trailers. Typically, they are installed before a trailer is towed.

The trailer brake controller helps ensure that trailer brakes are properly maintained.

What if I can't find the wires that connect the controller to the trailer brakes?

You will need to find out what color the wires are and follow the instructions on the manual. If you can't find the wire, you will have to order them from your local shop.

How do I test the trailer brake controller?

First, you will need to shut down your computer. Then, you will need to put your hand under the cab floor and feel for the pedal. The pedal should be hard and firm. If it is not, then you will need to adjust it.

How do I know if the brakes are working?

If the brakes are working, then they will be able to stop the trailer quickly. If the brakes aren't working, you will have to get a shop to repair them.

What if the brakes don't work when I test them?

The brakes may need to be repaired. If this is the case, you will need to call a shop and ask them what to do.


In conclusion, this article (HOW TO INSTALL TRAILER BRAKE CONTROLLER?) was hopefully helpful to you. We've provided you with a few different ways to control your brakes using a trailer brake controller. Hopefully, you'll use these methods when you need to stop or slow down your vehicle.

John D. Archer

John D. Archer is a mechanical engineer and writer based on the area of automotive accessories at, A resident expert and professional, John is passionate about all things automotive and loves to share his knowledge. He has good experience in all kind of automotive accessories. He has worked as a chief mechanical engineer in some reputed automotive garage firm.