Refrigerant Pressure Sensor / Switch: Testing and Inspection

SCAN TOOL TESTING
A scan tool displays A/C refrigerant pressure in psi. The sensor's range and corresponding display should be in the range of 0 to 450 psi. A sensor or circuit problem should set DTC P0530. A poor ground at the sensor will result in a fixed high pressure value on the scan tool display. Refer to System Diagnostic Table: A/C Clutch Control Diagnosis for further diagnosis. Testing and Inspection