A/C clutch is not getting power on my son's 97. I have verified Hi and Low pressure switches are closed. With jumper wire from high pressure switch compressor runs, but radiator cooling fan does not run, until engine warms up. This is a V-6 car, and the Chiltons shows a module that controls the radiator fan and compressor clutch. Any thoughts? I have asked AutoZone and O'Reilly's for replacement. They are not comming up with anything. Is this a salvage yard item?