For 1990-2009 cars

Scan Tool Output Control | Additional Menu Selection | Description
--- | --- | ---
Automatic Level Control Test | Automatic Level Control Compressor Test | Commands the compressor ON and OFF.
Automatic Level Control Test | Automatic Level Control Exhaust Valve Test | Commands the exhaust valve ON and OFF.
Recalibration | ALC Trimset | Commands the recalibration of the Suspension Control Module for ride height.