2001 cadillac seville rear shock air compressor wiring diagrah air compressor does not work, with key on white wire to comp. Hot, rear shock air comp, inop, 4 pin plug 1 white wire has power with key on going to comp.
There is a safety override that shuts off the compressor after a certain amount of time if there is a leak. A fitting or the shocks could be leaking. You can have the trouble codes pulled to check on electrical problems. Any Advacne Auto ro Auto Zone will do this for free.