A/C Status, INPUT
CIRCUIT FAULTSLow Pressure
If the A/C Pressure Sensor indicates low pressure, Diagnostic Trouble Code (DTC) 66 A/C Refrigerant Pressure Sensor Circuit (Low Pressure) will set. Powertrain Controls - ECM/PCM
Circuit Error
If the A/C Pressure Sensor detects no A/C head pressure change when the A/C compressor cycles, DTC 67 A/C Refrigerant Pressure Sensor (Circuit Error) will set. Powertrain Controls - ECM/PCM
A/C CLUTCH DISABLED
If DTCs 66 and 67 are set, the A/C clutch will be disabled.