P0533 - A/C Refrigerant Pressure Sensor A Circuit High

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

P0533 - A/C REFRIGERANT PRESSURE SENSOR A CIRCUIT HIGH

Description:	The ACP transducer sensor inputs a voltage to the powertrain control module (PCM). If the voltage is above a calibrated level the DTC sets.
Possible Causes:	ACP transducer sensor circuit short to PWR Open ACP transducer sensor circuit ACP transducer sensor circuit short to VREF Damaged ACP transducer sensor
Diagnostic Aids:	Verify the VREF voltage is between 4 and 6 volts.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	refer to PINPOINT TEST DS .