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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 316 (Electronic Shift Module (ESM) - Electrical Diagnostics - 8HP45 Automatic Transmission - 1500) >> Diagnosis And Testing >> U0155-00-Lost Communication With 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 purpose of the diagnostic is to monitor the CAN BUS, the transmitted messages on the CAN BUS and the validity of the CAN signals. Several control units are connected to the CAN BUS which send their messages cyclically in a defined time window. The messages contain multiple signals representing vehicle information.

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