Camaro RS V8-305 5.0L VIN E TBI (1990)
Fan A/C Pressure Switch: Description and Operation
Typical A/C High Pressure Switch
DESCRIPTION:
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 opens when the A/C head pressure exceeds approximately 200 psi.
