1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII
I had a hose disconnected from my level ride system in mine and the compressor ran for maybe 10 seconds at the start and shut off. It probably has a shut-off feature in case of a big leak or disconnected hose. I have since had the hose reattached. So I think it might just give you a code if you install non air ride shocks. Then again I have no real idea about computerized things in cars.