Just got the malfunction indicator popping on after the truck sat out in the cold(-35) for about a week. Did the key thing to pull up the codes, but the odometer wouldn't give me any. It just showed dashes for a few moments and then read "DONE". After reading "Done", the malfunction indicator flashes for a minute or so before going solid again. Took the truck out for a drive and it seemed to run just fine. Saw some other users had this issue when the gas cap was on loose but mine is on tight. Any idea what might be going on?