Range Rover Air Susp Fault - No Lights

Back again
Range rover suspension is a nightmare 😖
Range rover l322 05/2005
So I was driving back from work yesterday and went over a road bump. The car just switched itself off completely.
I checked under the bonnet and one of the battery leads was very loose so I connected it back up and I got power 😃

When I got in the car I did the usual turn the steering wheel to one side and the other. But there was no light on the air suspension controls but no faults on the dashboard.
So I checked the fuses they were all fine and I disconnect and reconnected the battery today morning.
Still no light on the air suspension control but I've got the air susp inactive on the dashboard.
Can't control the suspension 😵

Any ideas what the fault can be?

Thanks in advance

May need diagnostics to read/clear the fault. could be a compressor fault or a height sensor.

Needs diagnostics ideally...but a bump could have dislodged a height sensor...or it could be as simple as the height sensor has moved to a dirty position and got crap on the wiper inside...

it could be a simple reset required for that one, but only diagnostics will tell....