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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (2.9L Pcm 1 - DTCS P3406-00 To U143B-00) >> DTC Troubleshooting >> U0074-00-Dedicated Powertrain D-Pt Can Bus Off >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
PRIVATE CAN HIGH CIRCUIT SHORTED TO GROUND
PRIVATE CAN HIGH CIRCUIT OPEN/HIGH RESISTANCE
PRIVATE CAN LOW CIRCUIT SHORTED TO GROUND
PRIVATE CAN LOW CIRCUIT OPEN/HIGH RESISTANCE
IGNITION COIL CONTROL MODULE
POWERTRAIN CONTROL MODULE 1 (PCM-1)

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