Willrwilli

I have an 02 A8L and I am having a problem with my ABS and ESP not working. I just had a snow storm and I am positive the ABS is not working. The strange thing is neither warning light is on. Also when I start my car only a few of the warning lights come on Generator, EPC, AIR BAG, CHECK ENGINE, AND ELECTRONIC IMMOBILIZER are the only lights that come on. Also when I push the ESP button nothing happens. Where should I begin? The car runs great but I live in Cleveland and need the ABS. It almost seems like something needs to be reset or something is not plugged in.