A/C Pressure Transducer

The A/C pressure transducer is mounted on a Schrader valve-type fitting on the A/C manifold and tube.
- A valve depressor, located inside the threaded end of the A/C pressure transducer, presses in on the Schrader valve stem.
- This allows the compressor discharge pressure to be monitored by the Powertrain Control Module (PCM).
- 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.