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Home >> Chrysler >> 2007 >> Crossfire Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 163 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0404-Implausible Data Received From ESM >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2009 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.

The messages sent on the CAN bus are distinguished by an identifier (ID). Each CAN ID is defined to contain a certain number of bytes. The Transmission Control Module (TCM) verifies that it has received the proper number of bytes for each ID.

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