No Communication From A Control Module
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The infotainment control module (ICM) knows which control modules are connected to the MOST network. If any control module on the MOST network ceases to communicate, a diagnostic trouble code (DTC) is stored in the infotainment control module (ICM). There is a diagnostic trouble code (DTC) for every control module on the MOST network for this fault.
Missing communication may be due to an internal fault in the control module or because the function is incorrectly implemented in the control module.