I have had this problem with the susp level inactive warning light coming on and my ride height adjustment button not working.

Just thought i would share my history on this...i have had it hooked upto the computer a few times before. The error appeared but when the errors were cleared it did not appear again and the ride height adjustment button started working again and the warning on the dash disappeared...for a few days....then went back to not working.

I had it hooked upto the computer again today at a local indie. He managed to clear the error and the warning has disappeared and the ride height button is working again.

I am expecting for the inactive susp level warning to come back and for the ride height button to stop working again....HOWEVER what this does tell me is that it is not the fuse, and it is not the pump...could it be the relay or the ECU module ?

How can i check if its the relay ? Are there any tell-tale signs on the relay itself that would tell me its not working ?

Any thoughts ?