L322 2004, need diagnostic for air susp inactive

Hi

Does anyone have s diagnostic tool I could loan, hire, borrow to try work out why my air Susp inactive has come on?

I've got a 2004 Range Rover & following a gear box change its started up with this, the car is lower than it should be, I've tried the fuse, disconnecting the battery & resetting and felt the bags which seemed okay.

There's no lights on the dash so there's obviously a hard fault & having paid a kings ransom for the gearbox last month I'm trying to mend it myself which if it's the compressor should be fine. If it's not I'm out lol!

If anyone has one I can borrow I'll happily pay & if they want to lend me some advice too I've got beer tokens!

Anyone at all?

I just had a look at the LZ international Rescue Map for you, but the nearest diagnostics I could see are near sheffield ( approx )...

here's the map:-https://mapsengine.google.com/map/u/0/edit?hl=en&authuser=0&mid=zWbgnomp0Rhg.kLVE2H61D3z4

Hope that helps a bit, maybe. ( probably not what you want to hear, but I bought my own diagnostics - it ends up cheaper than faffing around with garages .... )