I have a 2003 Honda Civic LX. The AC light comes on when the button is pressed and the cabin blower comes on when the **** is turned but only warm air comes out. The compressor clutch does not engage and the condensor fan stays off. If I jumper the compressor relay the clutch engages and the air cools down. I jumpered the pressure switch but this made no difference. I checked the fuses and found no problems. What is my next step? Thx.