my ml629 serial number 629n8000877 don't communicate with audi ( ecu siemens 5wp43330 05.12.97 ersme749509R0010009 ) THE CONNECTIONS ARE CORRECT battery full of charge- switch on -what is the reason .also with obd2/eobd i have the same problem cannot find the ecu. but the abs ecu find with succes read the problem erase dtc and show it again because is really faulty that i check it with another obd. the ML629 is my new obd scanner. and something more  dont shows the models of european audi and volkswagen to select ho needed to check , that is trouble or not ?????

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