Monday, November 22, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 2619


- X63/4 (CAN databus adapter connector, 2-pin)



- Test connectors and wiring for CAN of engine compartment CAN control modules.



- Control unit



Communication with ECU required ( Measuring system )



E0562



The voltage supply of circuit 87 has undervoltage.



Possible cause:



- Local undervoltage of component Y3/8n4 (Fully integrated transmission control (VGS) control unit)



Affected functions:



- Battery / On-board electrical system



- CAN Communication



- Automatic transmission Function



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Test 1: Check power supply at control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit).



1. Check power supply at control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit).



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



- Switch off ignition.



- Separate plug connection at transmission.



- Measure voltage in transmission wiring harness using a multimeter.



- Switch on ignition.



Measure direct voltage with multimeter between 5 and 4Specified value:



- Voltage[8,5...16,4] V



Question



- Is the measurement value OK?



YES



The measurement value is OK.Possible cause of fault



- The conductors in the electrohydraulic control unit are interrupted.



- Component Y3/8n4 (Fully integrated transmission control (VGS) control unit) is defective.