Tuesday, October 16, 2018

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1671


contact and corrosion..



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Ground cable



- W9 (Ground (at front left headlamp unit))



End of test



Part 2



One or more signals sent from control unit N73 (EIS [EZS] control unit) via the CAN bus is implausible.



1.1.3.2.1.8. Check power supply at control unit N51 (AIRmatic with ADS control module).



Test 1.1.3.2.1.8.1: Test voltage supply of circuit 30.



Test 1.1.3.2.1.8.2: Test voltage supply of circuit 87.



1.1.3.2.1.8.1. Test voltage supply of circuit 30.



Test 1.1.3.2.1.8.1.1: Test voltage of terminal 30 at control unit N51 (AIRmatic with ADS control module).



Test 1.1.3.2.1.8.1.2: Test of cable for voltage supply



Test 1.1.3.2.1.8.1.3: Test procedure ground cable



1.1.3.2.1.8.1.1. Test voltage of terminal 30 at control unit N51 (AIRmatic with ADS control module).



Test prerequisite



- Battery voltage is OK.



Status of the relevant actual values:



- Terminal 30:Warning! Communication with ECU required.



Test sequence



- Switch off ignition.



- Connect socket box.



- Switch on ignition.



- Measure direct voltage with multimeter between sockets (2.21) 55 and (2.47) 81 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 actual value is not o.k.Note



- This test did not produce any clear result.



- Select further tests.



1.1.3.2.1.8.1.2. Test of cable for voltage supply



Test prerequisite



- Battery voltage is OK.

No comments:

Post a Comment