can anyone offer help on a range rover classic softdash, ecu will not power up air compressor, bridge across relay terminals and compressor works fine. also when hooked up to outside air system works ok.appears to be failing to send signal to relay? next what series is the compressor ive been told its a thomas but not the series? last ive just found an intermittant fault in the d/s electric seat stopping all functions along with the external mirrors? any help would be great. chris