Pressure Transducer
WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
Pressure transducer switching incorporates the functions of the high-pressure and the low-pressure cutout switches along with the fan cycling switch. The pressure transducer is located in the high-side liquid refrigerant line behind the right headlamp, between the right front inner fender and the air filter assembly. The output from this pressure transducer goes to the ECM which controls the compressor function based on the pressure signal.