Hello, I have a 1998 Jaguar XJ8-L that is not getting power to the Air Conditioning compressor. My mechanic thinks it may be a relay, but cannot find any information on the wiring schematic for the A/C system. Where are the relays? Are we looking in the right direction? What could be other possibilities. Note: When the compressor gets power...it is very cold and works well...it appears to be totally a power problem. It started this trouble last summer, and would work sometimes, and others not....but now it will not work at all. Thanks for you help.