A question for all you experts. Have a P38 Diesel 1996, air suspension stopped working and there are no red indicator lights in the cab (all off). Normally OK with fixing air suspension, but can't find any information on this fault. No faults shown from EAS Unlock, checked all fuses etc. Pump runs OK via EAS Unlock. Can read and write heights etc but will not raise of lower. Pumped it up manually, stayed up for a while then the rear suspension went to the stops for no apparent reason. Now using it with the relay removed, no leaks. Any thoughts please?