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2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1940


1.1.3.2.1.4. Check power supply at control unit N15/3 (ETC [EGS] control unit).



Test 1.1.3.2.1.4.1: Guided test



1.1.3.2.1.4.1. Guided test



Operation number of operation texts and work units or standard texts and flat rates:27-0641Possible cause



- Battery has incorrect charge state or is faulty.



- Local undervoltage of component N15/3 (ETC [EGS] control unit)



Test sequence



- Erase fault memory.



Continue with button "F2"



Warning!Communication with ECU required.



1.1.3.2.1.5. Check power supply at control unit N15/5 (Electronic selector lever module control unit).



Operation number of operation texts and work units or standard texts and flat rates:27-0641Test sequence



- Switch off ignition.



- Disconnect connector at component N15/5 (Electronic selector lever module control unit).



- Switch on ignition.



- [A.2] Measure direct voltage with multimeter between 2 and 1 [A.1]



Status of relevant actual value:



- Supply voltage (tml. 15):Warning! Communication with ECU required.



Specified value



- Voltage[7.0...16.0] V



Question



- Is the measurement value OK?



YES



The measurement value is OK.Possible cause and remedy



- Replace component Floor-mounted shift.



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Check fuse f55 (voltage supply from control unit ESM) in component N10/1 (Front SAM control unit with fuse and relay module).



- Check all affected plugs, connectors and electrical components for damage, loose contact, corrosion etc. and repair if necessary.



End of test



1.1.3.2.1.6. Check power supply at control unit N15/6 (Sprintshift control module).



Test voltage supply of circuit 30.



Operation number of operation texts and work units or standard texts and flat rates:26-0641Test sequence



- Switch off ignition.



- Connect socket box to component N15/6 (Sprintshift control module).



- Measure direct voltage with multimeter between sockets (B.36) 36 and (B.38) 38 of the 126-pole socket box tester.

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