Wednesday, June 2, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 879


Test voltage supply of circuit 87.



Test sequence



- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [F.3] 99 of the 126-pole socket box tester.



- Measure direct voltage with multimeter between sockets [ F.4 ] 100 and [ F.5 ] 101 of the 126-pole socket box tester.



- Measure direct voltage with multimeter between sockets [ F.6 ] 102 and [ F.5 ] 101 of the 126-pole socket box tester.



- Switch on ignition.



Specified value



- Voltage[11.0...15.0] V



Question



- Are the measurement values OK?



YES



The measurement values are OK.Further possible causes of fault



- Test voltage supply of circuit 30.



NO



The measurement values are not OK.Possible cause and remedy



- N10/1f43 (Fuse 43)



- N10/1f44 (Fuse 44)



- N10/1kI (Circuit 87 relay, engine)



- Lines



- N10/1 (Driver-side SAM control unit with fuse and relay module)