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Home >> Jeep >> 2020 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (8HP75 Automatic Transmission - DTCS P1D91-00 To U1477-00 - 2500HD & 3500HD) >> DTC Troubleshooting >> U0074-00-Dedicated Powertrain (Dpt) Can Bus Off >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
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  DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .