EHC2 dual axle air suspension - bad module?

[SocalD]

Hey all - I have a 2005 X5 4.8is with dual axle EHC2 air suspension that has the infamous "SELF LEVEL INACT" dash warning. And the problem is the pump will not turn on. I have already used both DIS and INPA to attempt to manually turn the pump on. While it shows the function was activated, the pump is not running. And I have checked both relays related to the pump; the purple one that is on the fuse/relay block behind the rear right removable panel, and also the black one that is hidden underneath the battery tray cover that is wrapped up in protective foam. I have also checked the pump by removing it's power PINs and hooking up 12V directly to the leads which the pump turned on and ran just fine. So the only thing I have not checked is the air suspension controller/module. Is there any way to verify that is working properly?

The only other clue I can give you is that I just finished a major repair in which the car sat for 4-5 weeks with the battery disconnected. I was repairing the damn alternator bracket gasket that was a nightmare but got er done!