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how to learn drive authorization mercedes benz 07 s550 w221

1081 Views 2 Replies Latest reply: 2020-06-21 08:08:13


  •   Level 2   
    (16) points

    2020-03-04 04:02:50
     working on 2007 w221 mercedes benz s550 
    teach in of drive authorization system loads and then hangs up @ "please wait"
    eis seems to function but "live view" shows "motor electronics 9.7 start enable - NO" 

    gbox2 bench mode unable to communicate with ecu as wired in wiring diagram
    ecu communicates on vehicle, until "teach in" hang up then shuts off until battery disconnected and reconnected

    somebody benz/autel smart help me out
    i have all the proper autel tools, im608,jbox,xp400,gbox2,ms906bt, more
    Reply

  •   Level 7   
    (1473) points
    Kevin H

    2020-03-05 23:25:53 (Reply to:)

    What was wrong with the car? Did you replace the ECM? Were the keys lost? How did
    you get into this situation?
    Reply

  •   Level 2   
    (16) points

    2020-06-21 08:08:13 (Reply to:Kevin H)
     Solved, bad ecu, it would communicate via obd. But coil drivers or something were fried inside, tried direct method via gbox2, worked like a charm. Mercedes its always something fried inside, always open the module! 
    Reply
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