My MaxBrake controller shows the amperage draw for the whole system. Unfortunately, MaxBrake is no longer made and I don't know if other controllers have this feature. If you have an amp meter capable of more than ten amps, you could open your plug and put it in line for the brake circuit...
Check to see what the amperage draw is on each magnet. It should be 2.5 - 3 amps at full actuation, depending on brake size. Just because you have voltage, it does not mean there is enough amperage for the brakes to properly work (bad connections, insufficient wire size, poor grounds, etc.)...
My wife and I test drove the first Bronco Sport that came to the dealership. That was either late 2020 or early 2021. She loved it! Our intent was to replace her 2008 F-150 SuperCrew. We have another SuperCrew, plus my Dodge CTD, so buying a small car for her to run around in was okay with me...
My junction box is mounted under the pickup. It had a factory seven pin plug and I ran the factory wiring into the junction box and ran seven wire cable back up to the plug under the bumper, and a new one to the plug in the box. I can take a picture, if you’d like. We are shelling corn right...
You can get a junction box that Nick talks about from e-Trailer. I put them on two different pickups of mine so I could add a plug for a gooseneck in the bed. Weather tight, and a great addition.
So, the short answer to my question, asking if you had experience with a properly installed and maintained electric trailer brake system is no.
Also, we used Hendrickson biscuit suspension on trucks in the woods for years. Amazingly tough and dependable.
But, this has nothing to do with the...
This just tells me you have no knowledge of how to properly install, maintain, and use electric brake systems. I’ve pulled trailers with electric brakes all over the Rocky Mountains for over 50 years and never felt they were inadequate. I’ve also driven class 8 trucks for almost 50 years and...