Monday, 2 December 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1994


- Line from component N3/10 (ME-SFI [ME] control unit) to component X30/5 (Left voltage distributor (CAN) connector)



- Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).



- Test terminating resistor of CAN element in control module N3/10 (ME-SFI [ME] control unit).



End of test



1.1.3.2.2.1.2. Perform measurement at component N3/10 (ME-SFI [ME] control unit).



Test total resistance of the CAN engine.



Test sequence



- Switch off ignition.



- Connect socket box to component N3/10 (ME-SFI [ME] control unit).



- Measure resistance with multimeter between sockets (F.41) 11 and (F.54) 24 of the 35-pole socket box tester.



Specified value



- Resistor[55...65]ohms



Question



- 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



- Line from component N3/10 (ME-SFI [ME] control unit) to component X30/5 (Left voltage distributor (CAN) connector)



- Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).



- Test terminating resistor of CAN element in control module N3/10 (ME-SFI [ME] control unit).



End of test



1.1.3.2.2.2. Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).



Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).



Test sequence



- Switch off ignition.



- Connect socket box to component N3/10 (ME-SFI [ME] control unit).



- Disconnect coupling F at component N3/10 (ME-SFI [ME] control unit).



- Measure resistance with multimeter between sockets (F.41) 11 and (F.54) 24 of the 35-pole socket box tester.



Specified value



- Resistor[115...125]ohms



Question



- 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



- Line from component X30/5 (Left voltage distributor (CAN) connector) to component N3/10 (ME-SFI [ME] control unit)



- Component X30/5 (Left voltage distributor (CAN) connector)



End of test



1.1.3.2.2.3. Test terminating resistor of CAN element in control module N3/10 (ME-SFI [ME] control unit).



Test terminating resistor of component N3/10 (ME-SFI [ME] control unit).



Test sequence



- Switch off ignition.



- Connect socket box to component N3/10 (ME-SFI [ME] control unit).



- Connector F is plugged in at control unit.



- Unplug the socket F from the wiring harness at the socket box.



- Measure resistance with multimeter between sockets (F.41) 11 and (F.54) 24 of the 35-pole socket box tester.

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