What kind of problems did u have? I don't understand why u would have probs with a factory option
No off for starters, 0 is NOT off. Causes lockup on lightly loaded trailers (even when set to 0 which should be COMPLETELY off like every singly brake controller ever made, except this one). On my big 5er, pulling up to a stop sign even set on 0 the controller would practically lock up the brakes on the trailer causing the whole rig to get yanked to a pretty violent stop. And forget about trying to park/maneuver into a site with the damn thing hooked up, every time you even activate the brake lights it's like you just slammed on the trailer brakes.
Some people don't have problems, they seem to all be running older trailers. My only two theories are that with newer trailers and new magnets, wiring, etc, the brakes are needing far less power to operate effectively than what the controller will ever put out. And that it's assuming/reading the truck as stopped and applying "holding" brakes while the rig is still very much in motion. None of that excuses the lack of an off on the thing though. So mines disconnected with the TIPM set 'not present' so the EVIC doesn't whine.
I know quite a few others who've had similar or identical problems on here, and elsewhere. My local dealership says I'm the only one they know of whose had problems but I know from on here I'm not the only one. I haven't tried it on an older trailer, just my new 5er, and a brand new unloaded bumper pull flatbed (that was so dangerous I actually ran without the truck hooked up, anytime the trucks brakes were on at all the trailer was locked up.) -- 5th wheel works great with my Prodigy P2 in place of the ITBM though.