air suspension trouble

Replaced height sensor, removed and jumped compressor, works great. Still nothing coming from the suspension when car is started. Cadillac told me they have a relay that controls the system but noone can tell me where its at! "98 deville please help.
Well I found and tested all relays, they're all good. any info would be appreciated.

Check all of your fuses. Is anything else not working?

All the fuses are good and everything else is fine.

check your shocks for holes, use some soapy water