My 2000 blazer has me puzzled. The battery drains over night the highbeam indicator is always on. When its running the airbag security abs and the low fuel lights are on. The fuel gauge sits at empty too. the odometer and trip and gear selection indicator also dont work. Im putting in a new multifunction and ignition switch. Hopefully that should fix it. I've also heard the dash cluster could be bad but i dont think that would cause a battery drain. Any other info anyone has would help. To top off all this my 2001 Blazer (my baby) got t-bone yesterday by an unisured motorist (to say nicely) so i will have tons of parts to post soon.