Why is my AC clutch not working at low pressure?
Why is my AC clutch not working at low pressure? Jumper between wires at low pressure switch still no clutch engagement. System is fully charged and again blows very cold when clutch is hot wired directly to battery. Low pressure switch, blue wire has not signal, black wire with white strip shows .03 volts. What to do if your a / C CLUTCH doesnt engage? IF the still doesnt engage it then you need to run power directly to the AC compressor and see if the compressor engages then. If the Compressor doesnt engage with direct power from the battery...