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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 234 (DTCS P1D94 To U1479 - 8HP45 Automatic Transmission - 1500) >> Diagnosis And Testing >> U0423-Implausible Data Received From Cluster/CCN >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 1500. 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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