On my 05, single axle air, on occasion I get the "self level suspension inactive" warning. There is no rhyme or reason to it. Stop car, re start and it is gone until the next time. I have scanned it and no codes coming up. I have a foxwell scanner. Is there a way to diagnose this? I am thinking it is one of the level sensors since the car isn't sagging or anything like that. Just don't want to throw parts at it. Any suggestions appreciated.

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Dave S.
Northeast
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600