922.7 7g failure c426 start enable drive authorization system not issued
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  1. #1
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    Default 922.7 7g failure c426 start enable drive authorization system not issued

    Hello,


    updated software on engine ecu and zgw without any problems with star diagnosis on mercedes cls 350 w219 from 2005.
    The flashing processes are completed succesfully without any errors.
    The engine ecu and zgw are not scn coded, only flashed with new software.
    The 922.7 gearbox had already the newest software and was not updated or scn coded.
    After this flashing procedures there is a fault on egs2 722.9 gearbox: c426 start enable drive authorization system not issued.
    Star diagnosis tells that this is a can communication failure between gearbox and engine ecu..
    The car sometimes do not crank or the engine start and goes out in position P or N.

    Can anybody help what to do ?

    best regards
    Last edited by nano2017; 18th July, 2018 at 09:42 PM.

  2. #2
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    Default

    wich tool do you have^? only star for mb?

  3. #3
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    Yes only star diagnosis and mercedes cgdi device.
    I am very angry to myself that i am so stupid and made the software updates with offline flashing.
    And now i run into big trouble with this car only by flashing engine ecu und central gateway.
    They are flashed succesfully but the car does not function properly and sometimes will not crank....

    Update: For the flashing process i took a cloned used engine ecu me9.7.
    Now t took back the old engine ecu with old software, but the problem is the same with the 922.7 gearbox.
    I think the last option is to buy a used cgw with same partnumber and old software and teach in with star diagnosis copying the data from old cgw to new used cgw....
    Last edited by nano2017; 18th July, 2018 at 10:18 PM.

  4. #4
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    Default

    Or is the solution to online scn code engine ecu, cgw and 722.9 gearbox.

 

 

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