A/C Pressure Sensor
A/C PRESSURE SENSORThe A/C pressure sensor allows the Powertrain Control Module (PCM) to monitor A/C compressor discharge pressure.
- A valve depressor inside of the threaded end of the A/C pressure sensor depresses a Schrader-type valve stem on the compressor discharge portion of the compressor manifold and tube assembly.
- This allows the A/C compressor discharge pressure to be monitored by the PCM.
- The A/C compressor sensor provides a voltage signal that is proportional to the A/C compressor discharge pressure.
- The PCM uses this information for A/C clutch control, cooling fan control and idle speed.
- It is not necessary to recover the refrigerant before removing the A/C pressure sensor.