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Home >> Lincoln >> 2016 >> MKT Base, AWD >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information And Diagnostics >> Diagnosis And Testing >> Climate Control System >> Pinpoint Tests >> Pinpoint Test A : DTC P0532, P0533 >> Notes

Pinpoint Test A : DTC P0532, P0533: Notes

Diagnostic Overview 

Refer to Automatic Climate Control System , for schematic and connector information.

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 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 volts for at least 2 seconds and the ambient air temperature is greater than 0 °C (32 °F).
P0533 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).

Possible Sources 

Visual Inspection and Diagnostic Pre-checks 

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