I have a 2008 LMM that is getting the display "service trailer brake system" when I start the truck I honestly don't even know where to begin looking any recommendations?
That IMO POS system didn't last long before I by passed it.. Then find that it gets power from a 14ga wire and everything else is 12/10ga wire.. I pulled it of the fuse box and wired it straight to the battery, fused of course with a 40A breaker. This weekend I'll be running a 10ga power wire to the brake controler .
Some people have had good experience with the OEM version.. I obviously have not