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This compact brake controller fits nicely in your cab. You can mount it anywhere you like and it's only 1" thick. The LED display is large and bright so it's easy to see, while the large manual override is easy to reach in a pinch.
Features:
Specs:
Gain is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to go as high as you can without the trailer brakes locking up. Use the orange rocker switch to adjust the gain on a scale of 0.5 to 9.9 in increments of 0.5.
Once you have the gain set, you can fine-tune your braking by adjusting the load control on a scale of 1 to 9 using the black rocker switch. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, decrease the setting.
The LED display on the Discovery is large and easy to read at a glance. You can adjust the brightness or trigger night mode so it won't glare obnoxiously on your dash. It also will give you clear error messages you can use to troubleshoot.
Because inertia plays no role in the functioning of this controller, your mounting options are limitless, so long as you can still easily access the manual override. The included bracket is designed to mount the brake controller flush to the dash so it takes up almost no space at all.
If your vehicle already has a plug-in brake controller wiring harness, you'll be able to connect the unit right to it. Otherwise, you will need to purchase a vehicle-specific wiring harness (sold separately) or hardwire the included pigtail harness to your vehicle.
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
If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).
Time-delayed braking means that when you apply the brakes in your vehicle, the controller activates the trailer brakes at a pre-set intensity and rate. Both the amount of braking power (gain) and rate of application (load) can be adjusted to suit your preference, the road conditions, the type of trailer, and the weight of your load. To determine which levels are best for your application, test your towing setup and choose what feels right.
California residents: click here
Great product
Easy ordering, good prices, fast shippi ng.
Perfect and helpful customer support on the phone! Product arrived VERY QUICKLY and fit perfectly. Will continue to do business with e-trailer!
Fast shipping and works perfectly
Haven’t used yet install was a breeze super easy with the plug adapter for my vehicle
Worked great! 2012 Ram 1500.
On time and installed effortlessly all was as discussed and would recommend to anyone looking for easy installation.
easy plug and play
Every thing was just great. Easy to hook up l had trailer brakes in just a few min. And the wire harness was perfect thank you
Very easy install with the custom wire harness
Fast shipping and communicative online purchase! Brake controller comes with harness for your vehicle and just plugs and plays.
Purchased this controller for a 2004 Toyota Tundra Limited and it has preformed perfectly! I haven't had any complaints. It reacts and adjusts quickly. Along with the plug and play function there's not much more I can say. Great product!
Took about 10 minutes to install. Have not made all the adjustments yet, but is easy to understand.
Tested . Work fine and advertised
excellent service and delivery.
Like its compact size and simple operat ion.
Very helpful, knowledgeable and friendl y!
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Gwendolyn Y.
3/21/2025
Love to hear it, Steve! What are you towing behind your Tundra?