Operation CHARM: Car repair manuals for everyone.

Compressor Pressure Switch

This system is equipped with a compressor pressure switch that is normally open. The switch activates at 2758-2758 kPa (380-400 psi). The switch releases at 1724 kPa (250 psi).

The switch drives the recirculation door to the closed position in order to reduce the system load and decrease the system high-side pressure.