2018 Ram Integrated trailer brake problems

Check the trailer battery and make sure that it is charged then pull the breakaway cable and see if your brakes work. If they do, it is the truck or the wiring pigtail. If they don't, it is the brakes. Just plug it back in fairly quickly so you don't burn up your magnets. Have you greased your bearings recently? Did you get grease inside the drum? Check the voltage and amps getting to the brakes. You should have 12 volts and about 3 amps. Try a few stops aggressively using the manual override and see if that will clean the brakes, I frequently have to do that with mine after it has sat any time at all. Open up the brakes and check the shoes, the magnet and clean the mechanism then adjust them properly. I am about fed up with my electric drum brakes and am thinking of replacing them with electric over hydraulic disks. I just haven't decided yet whether to replace just the brakes or the entire trailer. My trailer outweighs my truck 2 to 1 so brake issues with the trailer are serious. At least you are not in that boat.