Thursday, February 18, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 159


YES



The measurement value is OK.Further possible causes of fault



- Test cable for short circuit to ground.



- Test cable for short circuit to positive.



- Inspect plug connections for corrosion, pinched insulation and loose contact.



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Repair / replace faulty wiring between N118 (Fuel pump control module) and N3/10 (ME-SFI [ME] control unit)



End of test



1.2. Terminal 15 Test control signal for component N118 (Fuel pump control module).



Test sequence



- Switch off ignition.



- Unplug socket A und B from component N118 (Fuel pump control module).



- Measure direct voltage with multimeter between sockets A1 and B5



- Switch on ignition.



- Specified value:11V - 15V



Is the measurement value OK?



YES



The measurement value is OK.End of test



NO



The measurement value is not OK.Possible cause and remedy



- Test fuse, replace if necessary



- Inspect plug connections for corrosion, pinched insulation and loose contact.



- N10/1Fuse and relay modules



End of test



2. No further information available.



ED50B



One or more of the signals transmitted by control unit N73 (EIS [EZS] control unit) or N93 (Central gateway control unit) via the CAN bus



are 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).