I know that there are a bunch of these threads in the forum but I did not want to steal somebody's thread.

The problem I'm trying to solve is the "Ride Height Failure" message that i get across my information screen.
A bit of the back story that might help is. About 2-3 years ago I got my 06' LR3 detailed, and the detailer decided to clean the engine bay by pressure washing it. When I went to pick it up the dash lite up like a Christmas tree. I brought it to the local LR dealer which they replaced the off-road control module. The system seemed to run fine for a bit then the message appeared again.
I have been reading threads about how compressor are able to throw that message up if not working properly. When the vehicle started you can hear the compressor running then about 5 mins later I get the chime and message. I was able to select off-road height and left it lifted over night. The height dimensions read the same between night and morning.
Are there any other ways to check the system to make sure that the compressor is at fault and not just a $20 part?

 

What is the fault and what does the message(s) state?

 

The message across the screen says "Suspension Fault Normal Height Only".

There are also a few more "issues" I'd like to get resolved as well. I occasionally get a "Bonnet Open" message as well even though the hood is closed. The other issue is kind of a general automotive question maybe. I keep getting low tire pressure alert and every time I check the tires it always appears the front tires are low. A couple of days later the alert comes back on. I have had 2 sets of brand new tires on them and the same thing. What could be causing this issue? Cracked wheel, ****ty valve stem

 

I would suggest picking these off in no particular order.

Bonnet open you will need to replace the hood hood sensor.

The low tire pressure alerts -- you might have to put it on a computer, and let the guys do whatever magic they do to make them work.

It could be as simple as the wrong sensor on the wrong wheel, which might be related to your normal height only errors... starting to make possible sense now..

 

Get it scanned. Get the codes and see what the truck knows rather than what it is telling you on the dash. See if someone local to you has a IID tool or something similar to scan for the rover specific codes.

Dave