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Home >> Alfa Romeo >> 2017 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0691-00 To P110F-00 >> DTC Troubleshooting >> P105F-00-Humidity Sensor Circuit Out Of Range High >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
HUMIDITY SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
HUMIDITY SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT
MASS AIR FLOW SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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