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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0480-00 To P0687-00 >> DTC Troubleshooting >> P0531-00-A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
A/C PRESSURE SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
A/C PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .