Dakota 2WD V8-4.7L VIN J (2005)
Refrigerant Pressure Sensor / Switch: Testing and Inspection
A/C Pressure Transducer Voltage
The A/C pressure transducer is diagnosed using a scan tool. Before testing the A/C pressure transducer, be certain that the transducer wire harness
connection is clean of corrosion and properly connected. For the A/C to operate, an A/C pressure transducer voltage reading between 0.451 and 4.519
volts is required. Voltages outside this range indicate a low or high refrigerant system pressure condition to the powertrain control module (PCM). The
PCM is programmed to respond to a low or high refrigerant system pressure by suppressing operation of the A/C compressor. Refer to the A/C Pressure
Transducer Voltage chart for the possible conditions indicated by the transducer voltage reading.
