Hello Help required

I have just purchased a 2.5 dt 2001 range rover was running fine until 3 days ago started with abs fault then gearbox fault gearbox clears when restart engine also now I have suspention problem compressor is running for 5 sec the stops for 5 sec but no ride height can be sellected it seems to be stuck in highway mode no fault on the dash can anyone help

welcome, interesting, get the post on the RR section!

Probably best to get it plugged in to a diagnostics

Hi sorry not getting back sooner been away i have taken it to a 4x4 garage they did a diagnostic check found nothing I have changed aes box complete with a recondition one no change I then fitted a inline gauge on pipe no 6 started engine pump still only running 5 second intervals no pressure increase on gauge put jump wire in relay slots pump runs constantly gauge shows 140psi to tank remove jump wire and put relay back in lift from normal hight to high gauge goes down to 120psi pump kicks in 5 seconds intervals again but no pressure increase on gauge but vehicle lifts up to high mode then I dropped to normal again vehicle lowered but so did the pressure gauge now showing 80psi went to high mode again no movement but the gauge is now showing 60psi pump still running at 5 second intervals but no air being delivered to tank but the light on the dash is saying high ride has been achieved any suggestions other than set fire to it please help.