Sunday, 1 December 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 3078


- W16/Measure resistance with multimeter between 3 and (2.47) 81 of the 35-pole socket box tester.



Specified value



- Resistor< 1ohms



Question



- Are the measurement values OK?



YES



The measurement values are OK.Note



- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose



contact and corrosion..



End of test



NO



At least one of the measured values is not o.k.Possible cause and remedy



- Ground cable



- W16/3 (Ground (left of component compartment, power ground))



End of test



1.3.2.1.3. Check power supply at control unit ETC.



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



- Switch off ignition.



- Connect socket box.



- Switch on ignition.



- Measure direct voltage with multimeter between sockets [2.30] 30 and [2.29] 29 of the 126-pole socket box tester.



Specified value



- Voltage[11.0...14.0] V



Question



- Is the measurement value OK?



YES



The measurement value is OK.Possible cause and remedy



- Replace component N15/3 (ETC [EGS] control unit).



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Inspect connector 2 at control unit N15/3 (ETC [EGS] control unit) for damage, correct connection, loose contact and corrosion and repair, if



necessary.



End of test



1.3.2.1.4. Check power supply at control unit ESM.



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



- Switch off ignition.



- Disconnect connector at component N15/5 (Electronic selector lever module control unit).



- Switch on ignition.



- [A.2] Measure direct voltage with multimeter between 2 and 1 [A.1]



Status of relevant actual value:



- Supply voltage (tml. 15):Warning! Communication with ECU required.



Specified value



- Voltage[7.0...16.0] V



Question



- Is the measurement value OK?

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