Have 2001 LS430 with Air Supension not reponding. You can manually adjust height of each wheel, remove Glove compartment and locate blue connector. This is the connector to short out 3 pins at a time to raise or lower each wheel. I made a jumper with three wires so I could connect to 3 pins at the same time and turned igition on. When heght is where you want it, turn off ignition and then remove jumper. I will try to post manual connector pins and pic of connector.