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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> (Adaptive Front Lighting System Module - Electrical Diagnostics) >> DTC Troubleshooting >> B1022-1C-Axle Sensor Supply Voltage Malfunction - Circuit Voltage Out Of Range >> Possible Causes

Possible Causes

Possible Causes
FRONT OR REAR HEADLAMP LEVEL SENSOR OR ADAPTIVE FRONT LIGHTING SYSTEM (AFLS) MODULE CONNECTIONS
HEADLAMP LEVELING SENSOR 5 VOLT SUPPLY FT CIRCUIT OPEN OR HIGH RESISTANCE
HEADLAMP LEVELING SENSOR 5 VOLT SUPPLY FT CIRCUIT SHORTED TO VOLTAGE
HEADLAMP LEVELING SENSOR 5 VOLT SUPPLY FT CIRCUIT SHORTED TO GROUND
FRONT OR REAR HEADLAMP LEVEL SENSOR
ADAPTIVE FRONT LIGHTING SYSTEM (AFLS) MODULE

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