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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - EMTC >> Diagnostic Routine(S) >> Diagnostic Routine A >> Diagnostic Overview >> Normal Operation and Fault Conditions

Normal Operation and Fault Conditions

The A/C  pressure transducer receives a ground from the PCM. A 5-volt reference voltage is supplied to the A/C  pressure transducer from the PCM. The A/C  pressure transducer then sends a voltage to the PCM to indicate the A/C  refrigerant pressure.

DTC FAULT TRIGGER CONDITIONS

DTC Description Fault Trigger Conditions
P0532:00 A/C Refrigerant Pressure Sensor A Circuit Low: No Sub Type Information The A/C  pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is less than 0.26 volt for at least 2 seconds and the ambient air temperature is greater than 0 C (32 F).
P0533:00 A/C Refrigerant Pressure Sensor A Circuit High: No Sub Type Information The A/C  pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is greater than 4.95 volts for at least 2 seconds and the ambient air temperature is greater than 0 C (32 F).
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