Inflator Solenoid
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The inflator solenoid has battery voltage to it at all times and is controlled buy the height sensor with providing a ground to the solenoid. The solenoid valve is mounted to the compressor bracket under the vehicle.