I tried to the dignostic test you said, but nothing happened, I put the Ignition on position 1 and flicked the light door switch 3 times like you said and nothing, I then put the Ignition to position 2 (all the lights on the dash come up and the suspension pumped up), tried the switch again nothing, even started the car and tried and nothing, the light in the dash does work, and seems to glow in brightness depending how low the rear has sunk, in the morning it is bright, and just now it glowed just a little bit.
So what did I do wrong.
I can test for air leaks by spraying the solution then dump something heavy in the boot :0).
I did put something here, but it vanshied, I think
"So long and thanks for all the fish!"