OK LETS TRY THIS FIRST, REMOVE THE GLOVE BOX ,ON THE A.C EVAPORATOR, THERE IS AN ELECTRONIC THERMOSTAT, UNPLUG THIS UNIT , USE A JUMPER ON THE GRN/RED WIRE TO THE WHT WIRE WITH THE BLOWER SW IN THE ON POSITION, THIS WILL CLOSE THE AC THERMOSTAT RELAY , SENDING CURRENT TO THE AC COMPRESSOR RELAY CONTACTS, IF THE AC INPUT SIGNAL IS GETTING TO THE ECM, THIS SHOULD NOW GROUND THE AC COMP, RELAY COIL AND SEND CURRENT TO THE CLUTCH, THIS IS ASSUMING THAT THE AC SW IN THE DASH IS WORKING , IF THE CLUTCH NOW ENGAGES TURN THE AC SW ON AND OFF, IF THE CLUTCH GOES ON AND OFF YOU HAVE A BAD THERMOSTAT ON THE EVAP HOUSING , GIVE THIS A SHOT JERRY