OK. The A/C used to work on this vehicle but know it doesn't. I've had other pressing engine and electrical issues that are now fixed and can't remember when the A/C first went inoperable. The clutch plate never engages the compressor pulley and thus no A/C. Is there an A/C relay that may be he cause? 15 amp A/C fuse is good. Electrical connector at the rear of the compressor is good. Don't know if there's a ground short somewhere in the A/C circuit, and have not checked. Thanks.