A/C Pressure Transducer
WARNING: This page is about a different car, the 2002 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
The A/C pressure transducer is mounted on a Schrader-type valve fitting on the high pressure side of the A/C manifold and tube.
- A valve depressor, located inside the threaded end of the A/C pressure transducer switch, presses on the Schrader valve stem.
- This allows the A/C compressor discharge pressure to be monitored by the powertrain control module (PCM). For specifications regarding operating pressure(s), refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .
- The A/C pressure transducer 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 control.
- It is not necessary to discharge the refrigerant system to remove the A/C pressure transducer.