Thanks jayoldschool... I found it under the front of the car... or what's left of the pump! It's near the bumper on the driver's side. I found a vacuum hose hanging loose and it looks as it might have been hit or at least suffered some damage. I'll have a better look during the week.
My compressor failed and I couldn't figure out how to get at it. So I pulled the air line and put on a shreader valve and just filled manually. Still like that but the air shocks don't hold air for more than a day or 2 now.
As I suspected, my ELC pump is toast! So is the electrical connector. I would be extremely grateful if you could see if you have a pump for sale. My car won't pass Motor Vehicle Inspection without new rear air shocks... and to the best of my knowledge, the new shocks require the pump to be working.