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Home >> Chrysler >> 2025 >> Pacifica Plug-In Hybrid Select >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 ((Security Gateway Module (SGW) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0056-00 Can Ch Bus Off Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
OPEN OR SHORTED CAN C2 BUS CIRCUIT
OPEN OR SHORTED CAN C RADIO BUS CIRCUIT
CAN C2 RELATED MODULE
SECURITY GATEWAY MODULE (SGW)

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

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