Friday, September 20, 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 2518


Test prerequisite



- The fuses are OK.



- One of the fault codes 9010/9011 is present, or the associated actual value is not OK.



Test sequence



- Remove component N80 (Steering column module).



- Disconnect connector A at component N80 (Steering column module).



- Switch on ignition.



- Measure direct voltage with multimeter between sockets [N80] A.8 and [N80] A.9



Specified value



- Voltage [11.0...14.5] V



Question



- Is the measurement value OK?



YES



The measurement value is OK.Possible cause and remedy



- Inspect connector A at control unit N80 (Steering column module) for damage, correct connection, loose contact and corrosion and repair, if



necessary.



- Otherwise select further tests.



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Line between component N80 (Steering column module) and component N10/1 (Driver-side SAM control unit with fuse and relay module)



- Z7/58 (Circuit 30 connector sleeve)



- Line between component N80 (Steering column module) and component W15/1 (Ground (right footwell))



- Z6 (Ground connector sleeve)



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



End of test



2.1.3.2.2. Resistance test of engine compartment CAN



Test 2.1.3.2.2.1: Test total resistance of engine compartment CAN.



Test 2.1.3.2.2.2: Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).



Test 2.1.3.2.2.3: Test terminating resistor of CAN element in control module N3/10 (ME-SFI [ME] control unit).



2.1.3.2.2.1. Test total resistance of engine compartment CAN.



Test 2.1.3.2.2.1.1: Perform measurement at component X30/5 (Left voltage distributor (CAN) connector).



Test 2.1.3.2.2.1.2: Perform measurement at component N3/10 (ME-SFI [ME] control unit).



2.1.3.2.2.1.1. Perform measurement at component X30/5 (Left voltage distributor (CAN) connector).



Test total resistance of engine compartment CAN.



Figure legend



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



Test sequence



- Switch off ignition.



- Measurement with multimeter



- (X30/5) 2.Measure resistance with multimeter between pins 2 and 2.1 (X30/5)



Adapter cable no. W220 589 00 99 36 may be used.Specified value



- [55...65]ohms



Question:



- Is the measured value within the specified value range?

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