A couple of days ago I got the red suspension light flashing, which later goes to solid red. I parked up an left it for a while an checked again, it stays off until I go to move the car and then it comes back on. I got the codes read by a friend and it came up with
B1B74 to B1B77

C1A36 exhaust valve

U0434 invalid data received from dynamic response

We cleared the codes replaced the battery and then I took it for a little spin round the block, light stayed off until I pulled back in. Red suspension light came on again so we tried to read the codes again but there was non on the system yet the suspension light is still on.

4x4 screen looks ok with the sensors.
Vehicle raises and loses however compressor seems to stay on a while when raising.

Has anyone had any previous experience with anything like this?

Thanks for any help/suggestions