Thursday, March 21, 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 2876


- X63/4 (CAN databus adapter connector, 2-pin)



- Test connectors and wiring for CAN of engine compartment CAN control modules.



- Control unit



Communication with ECU required ( Measuring system )



2. Check the CAN communication with control unit N80 (Steering column module).



Warning!Communication with ECU required.



3. Chassis CAN test



Warning!Communication with ECU required.



EC431



One or more signals sent from control unit N73 (EIS [EZS] control unit) via the CAN bus is implausible.



Possible cause:



- N73 (EIS [EZS] control unit)



Affected functions:



- CAN Communication



- Automatic transmission Function



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Test 1: Fault in CAN communication with control unit N73 (EIS [EZS] control unit).



1. Fault in CAN communication with control unit N73 (EIS [EZS] control unit).



Operation number of operation texts and work units or standard texts and flat rates:27-0641WARNING



- This is not a function error of control module Y3/8n4 (Fully integrated transmission control (VGS) control unit) and does not justify



replacement.



Possible cause for the entry of this event code



- Operational fault of component N73 (EIS [EZS] control unit)



Possible measures



- Read out fault memory of control unit N73 (EIS [EZS] control unit).



- Process displayed fault codes in control module N73 (EIS [EZS] control unit).



End of test



Part 1



No CAN message was received from control unit Engine management.



Possible cause:



- Fault in CAN communication with control unit Motor electronics.



- Drive train CAN bus



Affected functions:



- CAN Communication



- Automatic transmission Function



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Test 1: Engine compartment CAN test



Test 2: Check the CAN communication with control unit Engine management.



Test 3: Drive train CAN test



1. Engine compartment CAN test

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