A/C Pressure Transducer

The PCM  monitors the discharge pressure measured by the A/C  pressure transducer. As the refrigerant pressure changes, the resistance of the A/C  pressure transducer changes. It is not necessary to recover the refrigerant before removing the A/C  pressure transducer.

A 5-volt reference voltage is supplied to the A/C  pressure transducer from the PCM  . The A/C  pressure transducer receives a ground from the PCM  . The A/C  pressure transducer then sends a voltage to the PCM  to indicate the A/C  refrigerant pressure.