BMW Scanner 1.3.6 COM failure

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  1. BMW Scanner 1.3.6 COM failure 
    #1
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    Pro P. Kunia's Car Details
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    Hi there,

    recently I bought a BMW Scanner 1.3.6 for serial connection (COMx, not USB) for changing some settings in my 735iA, E38 from 1999.

    Because I heard a lot about trouble when connecting this scanner via USB to serial adapter, I took a laptop PC which provides a native COM1 and installed Windows XP SP2, aswell as from the (miniature) CDROM which came along with the scanner, the BMW scanner exe file.

    When connecting the PC and the scanner, and OBD2 plug with the scanner and then turning the car key into position 2 (ignition on), then the scanner indicates that power from OBD2 is there, but the K-Line LED always remains red.

    Telling the scanner program to search for car units results in error messages like port error or error communicating with hardware.

    First I suspected the PC and / or Windows to be faulty, but on the same machine I can start "hyperterm" and send AT commands to COM1, which results in turning the K-Line LED to green temporarily?! So I assume that the standard settings are OK, and, well, I then played around with different baud rates, but this also didn't help.

    Can anyone please tell me if there are some drivers which have to be installed prior to connecting the scanner?
    Or, are there some more tricks you have tio know for getting it to work?

    Thanks in acvance,
    best regards,

    Markus
     
     

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    #2
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    Pro P. Kunia's Car Details
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    Hi,

    just adding the following:

    There are related threads where people report about trouble with USB-to-Serial converters.
    This is not the case here. The connection is done via native RS232 / COM1 port, and thus there are no USB drivers in use.

    My question now is:

    Did anyone manage to get BMW scanner V 1.3.6 (serial) to work yet, and if yes, are there additional drivers needed (except those for USB)?

    My version came along with one CDROM, containing one ZIP file with one EXE file ( BMW_Scanner_v136_Install.exe) in it.
    Is this enough, or are there some files missing?

    /* B.t.w., I had been told than Ediabas / Inpa / NCS cannot code vehicle ID and mileage info into a USED unit from second hand shop.
    This only worked with NEW equipment, they claimed -- Is this true? */

    Quote Originally Posted by Pro P. Kunia View Post
    First I suspected the PC and / or Windows to be faulty, but on the same machine I can start "hyperterm" and send AT commands to COM1, which results in turning the K-Line LED to green temporarily?! So I assume that the standard settings are OK, and, well, I then played around with different baud rates, but this also didn't help.

    Can anyone please tell me if there are some drivers which have to be installed prior to connecting the scanner?
    Or, are there some more tricks you have tio know for getting it to work?
    Thanks in advance, best regards,

    Markus
     
     

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    #3
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    TheEnd's Car Details
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    I haven't used 1.3.6 but I think it should be just the exe file.

    WinKFP can code/program VIN and mileage and so can DIS but only on certain modules. You often can't tell until you try.
    The 1.4 version of BMW scanner (USB) might work better.
     
     

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    Pro P. Kunia (14-08-2012)

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    #4
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    Hi, thanks!

    Quote Originally Posted by TheEnd View Post
    The 1.4 version of BMW scanner (USB) might work better.
    I got version 1.4 for USB and it works.

    But now, it seems that in the BMW 7, E38, the OBD-2 plug on the left side of the drink holder in the cabin room is not fully equipped (one pin is missing, pin 7?).
    I had to realise that only DME and exhaust values can be monitored from inside the car (over OBD-2).

    So, my assumption is that all the other units like PDC and RDC (tire pressure monitoring) can only be accessed from the OBD-1 plug under the hood, and,, there's an adapter necessary to go from the round OBD-1 plug to the scanner's OBD-2 plug input.

    Does anyone know which pins should be connected in the adapter, i.e. which one is the right adapter?

    Thanks a lot,
    best regards,

    Markus
     
     

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    #5
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    http://www.pinout.net/connectors/BMW_20pin_to_obd.jpg

    Something like that.

    Any of the 16pin to 20pin adaptors should work fine.
     
     

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