a/c clutch won't kick in.i have a new compresser and recharge.i have tested plug on 2000 Dodge Grand Caravan

i have swapped boxes for wires,tested plugs ,fuses,relays,and all are good. i have no power getting to the clutch need help fast getting hot outside.it has been charged .

Asked by for the 2000 Dodge Grand Caravan
does system work if pwr is run to compressor? poss cycling switch issues