A/C Pressure Transducer

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The A/C pressure transducer monitors the compressor discharge pressure and sends a variable voltage signal representing the pressure to the PCM. The PCM will interrupt A/C compressor operation (non-hybrid), or decrease the electric A/C compressor speed (hybrid) in the event that the A/C pressure transducer indicates high system discharge pressures. It is also used to sense low charge conditions. If the pressure is below a predetermined value for a given ambient temperature, the PCM will not allow the A/C compressor to operate.

The A/C pressure transducer is located on the high-pressure side of the TXV manifold and tube assembly near the TXV fitting. It is necessary to recover the refrigerant before removing the A/C pressure transducer.