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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 8HP50/850RE - DTCS P1D92-00 To U3002-00 >> DTC Troubleshooting >> U0074-00-Dedicated Powertrain (Dpt) Can Bus Off >> Possible Causes

Possible Causes

Possible Causes
CAN C BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION OR VIN MESSAGES
BODY CONTROL MODULE (BCM) POWER AND GROUND
BODY CONTROL MODULE (BCM)
TRANSMISSION CONTROL MODULE (TCM)
MODULE THAT SET THIS DTC

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