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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> (Heating & Air Conditioning - Electrical Diagnostics) >> DTC Troubleshooting >> B1940-17 - Cabin Fan-Circuit Voltage Above Threshold >> Possible Causes

Possible Causes

Possible Causes
BLOWER MOTOR WIRE HARNESS
BLOWER MOTOR
HVAC MODULE

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

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