Inflating and Deflating the Air Suspension

1. Turn ignition to the run position.
2. Connect the NGS tester to the vehicle.
3. Select 1997 4.6L/5.4L Expedition 4WAS module.
4. Select "Air suspension control mode" under "active command modes" menu.
^ Select "VENT FRNT" to deflate front down.
^ Select "LIFT FRNT" to inflate front up.
^ Select "VENT REAR" to deflate rear down.
^ Select "LIFT REAR" to inflate rear up.