Thursday, May 6, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 167


NO



The measurement value is not OK.Possible cause and remedy



- Check lines to components N3/10 (ME-SFI [ME] control unit) and N118/3 (Left fuel pump control unit) as per wiring diagram.



Further possible remedies



- Read fault memories of the control units N118/3 (Left fuel pump control unit) and N3/10 (ME-SFI [ME] control unit).



2. Check power supply at control unit N118 (Fuel pump control module).



Possible cause and remedy



- Test fuse, replace if necessary



-



Question



- Is fuse OK?



YES



Test prerequisite



Test sequence



- Switch on ignition.



- Unplug 4-pin connector from component N118 (Fuel pump control module).



- Measure voltage at the unclipped cable.(Ground- Positive)



- Measure direct voltage with multimeter between sockets (N118) 1.2 and (N118) 1.1



Specified values



- Voltage: [11.0 ... 14.5] V



Question



- Is the measurement value OK?



YES



The measurement value is OK.Further possible causes of fault



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



End of test



NO



The measurement value is not OK.Possible cause and remedy

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