1981 window electric problem for 1981 corvette?

Many possibilities. Check in theis order: Bad battery connections? Bad battery? Loose alternator belt? Bad alternator connections? Bad alternator? (Test at auto parts store.)

Hi, you remove the interior panel then the plastic cover then remove bottom motor plate cover. put a screw driver in one of the open holes or some how keep window up so it doesn't come down. unplug...

Behind the drivers seat (ie left hand side of car) in the battery compartment, just forward of the battery

If you tell me which part of the wiring diagram you're looking for I may be able to help. Email me at bogeygolf46@aol.com