Thanks to all for the replies to my post ! A fellow zr1 registry member came to the rescue a couple of weeks ago with a remanufactured BCM, and I had it installed yesterday, and now have dashboard incandescent lighting working !
Here is the bad news, for anyone still looking for a BCM for a 92 or 93: GM is no longer making this part, effective 8-24-06. The only way to get one is to send one in to GM for remanufacture, due to a "critical core shortage"....