I have a 1999 S80 T6 with 75,000 miles on it. Recently, my abs and stc stopped working. This is a bit of a problem during a Michigan winter. The warning lights have been activating on and off for about 20,000 miles. The system would always return to normal after I restarted the car. Has anyone had this problem? I don't want to get screwed by a dealer if there is a simple fix. Thanks.