all instrument lights stay on, no cruise, turn signals not working on 2000 Oldsmobile Alero

On my 2000 Alero, all the instrument lights (check engine, brake and all the others) stay on. And my turn signal will sporadically not work either. I've tried leaving the battery diconnected for awhile and that still won't help. Need a new computer? Any other thoughts?

Asked by for the 2000 Oldsmobile Alero
I have the same problem with my lights. My turn signals work sporadically but sometimes I can push my hazard flashers on for a second and then turn signals will work.