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    How to Reset Mercedes Benz 7G TCU with CGDI MB?

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    CGDI Prog MB is possible to reset/erase Mercedes-Benz 722.9 7g TCU Transmission Control Unit.  Check step-by-step instructions below:

     

    Run CGDI MB software

    Select Auto Commuter function
    Select engine type: TCU

    Cgdi Mmb Erase 7g Tcu 1
    Check wiring diagram
    Follow diagram to connect cgdi mb with TCU

    Cgdi Mmb Erase 7g Tcu 2

    The diagram need external 12V power. must follow the diagram . Some EGS cable that customers buy from other website can not use with CGMB.

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    Cgdi Mmb Erase 7g Tcu 4

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    Read TCU information

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    Read TCU info success

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    Press Get to get erase password

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    Calculate erase password successfully.

    Press Erase to reset

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    Erase TCU success
    Read information again

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    TCU has been reset.

     

    Note:

    The EGS status , if “personalized ” option not marked , “Activated ” option marked,  the EGS has been erased by other tool . This status may will cause erase failure . you need to put it back to car to activate it first ,or use other tool to activate it . Then use CGMB to erase .

    After software show you ”erased successfully ” , you need to read the EGS status to check if it correct erase . if not , reboot your cgdi ,do it again

    If erase password can not calculate , send your file to CG tech support .They can help you to calculate

    After you erased succeed , install TCU back to car, need synchronize with autel, mb star diagnosis etc

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