Sunday, March 28, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1331


2228



The left fuel level sensor has an electrical fault.



Possible cause:



- N10/2 (Rear SAM control unit with fuse and relay module)



- Check the CAN communication with control unit A1 (Instrument cluster).



- Interior CAN bus



Affected functions:



- Fuel level indicator



- Engine running



-------------------------------------------------



Test 1: Interior CAN bus



Test 2: CAN communication is faulty.



Test 3: Check component N10 (SAM control unit).



1. Interior CAN bus



Warning!Communication with ECU required.



2. CAN communication is faulty.



Test 2.1: Check the CAN communication with control unit A1 (Instrument cluster).



2.1. Check the CAN communication with control unit A1 (Instrument cluster).



Test 2.1.1: Check the CAN communication with control unit.



2.1.1. Check the CAN communication with control unit.



Warning!Communication with ECU required.



3. Check component N10 (SAM control unit).



Possible cause and remedy



- Read out fault memory of control unit N10/2 (Rear SAM control unit with fuse and relay module).



End of test



2229



The left fuel level sensor has an electrical fault.



Possible cause:



- N10/2 (Rear SAM control unit with fuse and relay module)



- Check the CAN communication with control unit A1 (Instrument cluster).



- Interior CAN bus



Affected functions:



- Fuel level indicator



- Engine running



-------------------------------------------------



Test 1: Interior CAN bus



Test 2: CAN communication is faulty.



Test 3: Check component N10 (SAM control unit).