Camaro Z28 V8-305 5.0L VIN F FI (1991)
A/C Pressure Sensor/Switch - Cooling Fan: Description and Operation
A/C Pressure Fan Switch And Cooling Fan Wiring Diagram
The A/C Pressure Fan Switch is used on vehicles with A/C. This switch tells the ECM to turn "ON" the cooling fan when A/C head pressure is high. This
switch closes when the A/C pressure reaches approximately 233 psi.
