This function is used to check the function of the solenoid valves for the air suspension.
Test conditions:
Ignition on.
Working pressure in air system.
Parking brake applied or wheels blocked.
Procedure:
Start the function.
Test the valves with the 'up' and 'down' buttons.
Press "OK" when the function is complete.
The function is done.
If the function fails, check the test conditions and repair any faults.