try this mate, just copied it incase you have difficulty reading the page on your phone
to restore system pressure by turning the ignition on and shorting pins 1 (power feed to ECU from delay turnoff timer) and 8 (power line to compressor) of the EAS ECU connector C117. (Note: To avoid overpressurizing, you can also monitor pin 13 -- when it switches up to 12 volts you are up to pressure). After running the compressor for about 10 minutes, Ron turned off the ignition, reconnected the plug to the ECU and started the car, which rose majestically on the air suspension in spite of still indicating "Air Suspension Fault". Ron then switched off, unplugged the ECU connector (C117), and drove it to the mechanic. The car stayed up and drove normally for the entire journey.