Cutlass Ciera Cruiser V6-3100 3.1L MFI VIN M (1994)
Refrigerant Pressure Sensor / Switch: Description and Operation
A/C Pressure Sensor Circuit
PURPOSE:
The A/C pressure sensor provides a signal to the PCM which indicates varying high side refrigerant pressure between approximately 0.0 psi to 450
psi. The PCM uses this input to determine A/C compressor load on the engine to help control idle speed with the Idle Air Control (IAC) Valve.