Check your fan relays, I believe the 1995 had two as opposed to 97+ that had three. Could be mistaken on that. Check the fan fuses, not HVAC. If you feel pretty comfy around 12v vehicle voltage (some people are not) try applying known good (FUSED!!) voltage to the fans themselves. If they turn on, I'd bet it's a relay or fuse. If not, you may have a dead fan on your hands. Though to be honest it sounds like a relay.