To my knowledge disconnecting the battery will do nothing those codes will be saved I have a international with a Cummings and I have insight so when I have a code I have to follow the procedure to reset it simply resetting some codes will do nothing they will come right back on some codes just need a test to be run and passed to be reset. I don’t know if you have a computer to plug into the truck but if you don’t I would say you don’t have a lot of hope but that doesn’t mean you have to get robbed do you have time to find the cheapest tow to the best place. Or find a local technician that will come out with a computer and diagnose the truck where it is at taking it to the dealership doesn’t always make sense most of the time they will hook it up outside anyways
