Draw-Tite Trailer Brake Controller
- Electric
- Time Delayed Controller
- Draw-Tite
- Under-Dash Box
- Up to 4 Axles
- Automatic Leveling
- Dash Mount
- Digital Display
- 360 Degrees
Palm-size brake controller activates trailer brakes with preset intensity when you apply the brakes in your vehicle. Adjust power output and braking aggressiveness with easily accessible, up-front buttons. Digital display and manual override.
Features:
- Brake controller activates trailer brakes with preset intensity
- Signal is sent to trailer brakes when tow vehicle's brakes are activated
- Adjustable power output lets you determine the amount of power sent to the trailer's brakes
- Set to higher output when towing in hilly terrain or with a fully loaded trailer
- Back off power when towing a lightweight or empty trailer
- Sync setting lets you adjust the aggressiveness with which the brakes are activated
- Increasing activation speed gives you full power output faster
- Supplying power more gradually gives you smoother braking
- Easy-to-read digital display communicates brake power output, sync setting, and error codes
- Shows diagnostic codes for overloads and open grounds
- Short circuit protected
- Slide-bar manual override
- Quick and easy installation
- Can be mounted at any angle in any plane, and in any direction
- Mounting bracket with hardware included
- Plug-in, vehicle-specific brake-controller adapter (sold separately) can be used for certain applications to reduce installation time
Specs:
- Application: trailers with up to 4 axles (8 brake assemblies)
- Designed for use with electric brakes only
- Dimensions: 4-3/16" long x 2-3/4" wide x 1" tall
- Harness length: 8"
- Limited lifetime warranty
Time-Delayed Braking
The Activator IV applies your trailer's brakes when the brake pedal in your tow vehicle is engaged. Every time you apply the brakes in your vehicle, a signal is sent - via the brake switch - to the Activator. The controller then sends power out to your trailer brakes to activate them with an intensity set by you, at a rate determined by you. Both the amount of braking power (output) and rate of application (sync) can be adjusted to suit your preference, the road conditions, type of trailer, and size of the load. To determine which levels are best for your application, you must test out your towing setup and choose what feels best.
A time-delay controller is so named because there is a delay between the time that you initially apply the brakes in your tow vehicle and the time that the controller reaches the set maximum power output. Unlike a proportional brake controller, which activates your trailer's brakes based on the deceleration of your tow vehicle, the Activator sends power out in the same way, with the same user-set delay, no matter the braking situation. Although this delay always exists, it can be adjusted by changing the sync setting. The controller will continue to send out power to the trailer brakes as long as your foot is on the brake pedal, even when your truck and trailer have come to a stop.
Built-In Controls on the Activator IV
![Built-In Controls on the Activator IV]()
The diagram above shows the controls and components of the Activator IV electric trailer brake controller.
Power Output Control
The power output control lets you set the maximum amount of power that will be applied to your trailer's brakes. Typically, the power output is only readjusted if you switch from a heavy, loaded trailer to a much lighter, empty trailer - or vice versa. During the initial setup process, use the plus and minus adjustment buttons on the top left of the Activator IV to adjust the output.
Sync Control
The sync setting represents the elapsed time from the point that the brakes are first applied to the point that the set power output reaches its maximum. This setting is responsible for determining the aggressiveness of the braking action.
To adjust the sync, use the plus and minus buttons on the top of the unit. If you want to reach maximum power output faster, press the plus button. To get smoother braking action by supplying power to the trailer brakes more gradually, press the minus button. You can alter the sync setting to suit your driving preferences or to improve handling based on changing road conditions or varied trailer loads.
Digital Display
The Activator IV brake controller features an easy-to-read LED window that displays the power settings as you adjust them. The power output is shown as a number, with 0 indicating minimum output and 10 indicating maximum output. The sync setting is shown as a number followed by the letter "o" to differentiate it from the output reading. The least aggressive sync setting is 0o and the most aggressive is 9o.
While braking, the unit displays the power output. To see or adjust the sync setting, step on your brake pedal and press either the plus or minus button at the same time.
The display will also show trouble codes to alert you to any potential problems, such as short circuits or overloads, or if there is an internal problem with the controller.
Slide-Bar Manual Override
The manual slide lever overrides the preset power output and allows the operator to engage the trailer brakes without using the vehicle's brakes. In addition to being a necessary safety feature, this option helps to control trailer sway by slowing the trailer to put it back solidly behind the tow vehicle.
You can also engage the manual override to help you move a sliding 5th-wheel hitch closer to your truck's tailgate for tight maneuvering during slow speed turns. Just apply the manual override to hold the trailer in place while slowly moving the tow vehicle forward.
Quick, Simple Installation
Because inertia plays no role in the functioning of this controller, you do not have to mount the unit at any particular angle or position it in any particular direction. As a result, mounting options are limitless, so long as you can still easily access the manual override.
Installation of the Activator IV requires that you either purchase a custom wiring adapter designed to plug into the controller or that you hardwire the controller directly into your vehicle. To hardwire the controller, you must remove the plug at the end of the integrated wiring harness.
Installation Accessories
A vehicle-specific, dual-mated wiring adapter is available for most newer trucks and SUVs with tow packages. One end of the custom adapter plugs into your vehicle's brake controller port, and the other end plugs into the controller - no hardwiring required.
A universal wiring harness (20127 - sold separately) that plugs into any Draw-Tite brake controller is also available. The 4 leads on the universal harness can then be hardwired into your vehicle. By splicing the universal adapter into your wiring instead of directly connecting the brake controller to your wiring, you gain the ability to unplug and remove the controller from your vehicle should the need arise.
Note: If a custom brake-control wiring adapter is not available for your vehicle, one of the following will be required:
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
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.
5504 Draw-Tite Act IV Electric Trailer Brake Controller - Time Based
Replaces 5500
Item # 5504
Installation Details
WARNING: This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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