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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 2.0L - DTCS P2237-00 To P2AE1-00 >> DTC Troubleshooting >> P2AB9-00-WASTEGATE Position Sensor "A" Circuit High >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
WASTEGATE POSITION SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
WASTEGATE POSITION SIGNAL CIRCUIT SHORTED TO VOLTAGE
WASTEGATE POSITION SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
WASTEGATE SOLENOID/TURBOCHARGER ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

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