Agree, sometimes these codes pop up from no where. Write the codes down and clear, then wait and see what repeats (exactly what a Dealer Technician is supposed to do). Some issues that I have had is connections, they appear solid, when undone they appear clean, I clean with a good quality electrical connection cleaner and apply dielectric silicon grease to the connection, reconnect. That has cleared up a lot of my miscellaneous codes over the years.Any ideas on where to start? I think it's Connection since there are 13 codes that just popped up today in a 13min drive. View attachment 3804