Help! I have a 2001 S 80 that is displaying " Factory mode Service Required" I did a clear DTC's And evidently did something I shoudn't have. Now the car runs fine but the lights, interior and exterior flash off and on and all the instruments drop to 0 and the back on. I'm lost. With the ignition switch i "on" it has no power but it will start right up. ?????Unhappy