Posted 3/1/2021 10:02 (#8865659 - in reply to #8864775) Subject: RE: Ford 6.7 diesel DEF fault code
NW IN
I'm not sure about the 2015 model year, but I have a 2012 6.7 and the DEF system was warrantied by Ford for 11 years, 125,000 miles. I noticed your odometer, definitely worth looking into. Had a couple sensors replaced and the tank heater on Ford's dime on mine.