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Home >> Volvo >> 2011 >> C30 R-Design, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Electronics - Design And Function - 4 Of 4) >> The Controller Area Network (Can) (2006-2013) >> Error Management In The Controller Area Network (Can) >> No Communication From A Control Module

No Communication From A Control Module

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2013 Volvo C70, 2012 Volvo C70, 2011 Volvo C70, 2010 Volvo C70, and 2009 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

The central electronic module (CEM) knows which control modules are in the control area network and checks that all the control modules communicate. If any control module on the control area network (CAN) does not communicate a diagnostic trouble code is stored in the central electronic module (CEM). There is a diagnostic trouble code (DTC) for each control module. The diagnostic trouble codes (DTCs) are CEM-DEXX.

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