A/C Pressure Sensor
A/C pressure sensor may also be referred to as A/C pressure transducer. A/C pressure sensor provides input signal to Powertrain Control Module (PCM) to indicate A/C system pressure. The PCM uses input signal for controlling A/C compressor clutch.
If pressure is too low, PCM will not engage A/C compressor clutch. If pressure is too high, PCM will disengage A/C compressor clutch and turn on cooling fans to prevent the A/C compressor head pressure from becoming excessive. The A/C pressure sensor is located on the A/C refrigerant line on firewall, near front of generator. See Fig 1 .