S2000 L4-1997cc 2.0L DOHC (VTEC) MFI (2001)
Refrigerant Pressure Sensor / Switch: Description and Operation
How the Circuit Works
A/C Pressure Switch
The A/C pressure switch is located in the condenser outlet line where refrigerant is in a high temperature / high pressure liquid state. The switch will
sense abnormally high or low pressure, and open the circuit. This removes the ground signal from the ECM, disengaging the compressor clutch.