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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS U1703-86 To U1A56-87 >> DTC Troubleshooting >> U1803-08-Lin 3-Bus Signal/Message Failure >> Possible Causes

Possible Causes

Possible Causes
LIN BUS 3 CIRCUIT SHORTED TO VOLTAGE
LIN BUS 3 CIRCUIT SHORTED TO GROUND
DRIVER WINDOW MOTOR
PASSENGER WINDOW MOTOR
LEFT REAR WINDOW MOTOR
RIGHT REAR WINDOW MOTOR
DRIVER WINDOW SWITCH
PASSENGER WINDOW SWITCH
BODY CONTROL MODULE (BCM)