Wednesday, 4 December 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1568


1.1.3.2.1.7. Check power supply at control unit N47-5 (ESP, SPS [PML] and BAS control unit).



Test 1.1.3.2.1.7.1: Test voltage of terminal 87 at control unit N47-5 (ESP, SPS [PML] and BAS control unit).



Test 1.1.3.2.1.7.2: Test of cable for voltage supply



Test 1.1.3.2.1.7.3: Test procedure ground cable



1.1.3.2.1.7.1. Test voltage of terminal 87 at control unit N47-5 (ESP, SPS [PML] and BAS control unit).



Test prerequisite



- Battery voltage is OK.



Test sequence



- Switch off ignition.



- Connect socket box.



- Switch on ignition.



- Measure direct voltage with multimeter between sockets (2.23) 57 and (2.14) 48 of the 126-pole socket box tester.



Specified value



- [11...14 V]



Question



- Is the measurement value OK?



YES



The measurement value is 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



The measurement value is not OK.Possible cause and remedy



- Lines to component N47-5 (ESP, SPS [PML] and BAS control unit)



- N10/1f47 (Fuse 47)



End of test



1.1.3.2.1.7.2. Test of cable for voltage supply



Test prerequisite



- Battery voltage is OK.



Test sequence



- Switch off ignition.



- Connect socket box.



- Switch on ignition.



- Measure direct voltage with multimeter between ground and socket (2.14) 48 of the 126-pole socket box tester.



Specified value



- [11...14 V]



Question



- Is the measurement value OK?



YES



The measurement value is 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



The measurement value is not OK.Possible cause and remedy

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