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USB VAG-COM Not Recognised by VAG-COM Software

Discussion in 'A3/S3 Forum (8L Chassis)' started by MarkyB, Apr 19, 2007.

  1. MarkyB
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    MarkyB Member

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    The USB VAG-COM I ordered from eBay (alpha-bid) arrived in the post this morning. I've spent several hours trying to get it to work(*) without success. The adapter shows up in the device manager, but VAG-COM says "Interface: Not Found!" when I try to configure it :(

    Have tried on my Desktop PC and Laptop, which are both running WinXP SP2.

    Any tips on what drivers I should be using?

    (*) I modified the VAGUSB.inf in the VAG-COM 409-1 software package that is installed to C:\Program Files\VAG-COM\ so that it would recognise the USB<->Serial interface on the lead; changed references of FAO2 to 6001 as the VAG-COM ones use a custom ID on their USB/Serial interface chip - probably to try to prevent you using a 3rd party lead ;)

    Cheers,

    Mark.
    #1
  2. claudefrog
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    claudefrog Member

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  3. timps
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    timps Shakersville

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    I used vag com 409-1 with no modification with the Alpha-bid cable

    The drivers I used are linked from this post

    http://www.audi-sport.net/vb/showthread.php?t=27483

    I used FTDI VCP Drivers version 2.00

    Have you set up the port setting Using deice manager in Windows XP
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  4. MarkyB
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    MarkyB Member

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    Thanks for the tips guys, but VAG-COM is stubbornly refusing to chat with the USB lead. Grrrr.
    #4
  5. MarkyB
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    MarkyB Member

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    OK.

    I've uninstalled the VAG-COM software and the USB/Serial Port Drivers.

    I've downloaded & installed the FTDI Virtual COM Port Drivers and assigned them to COM Port 4

    I've downloaded and installed the 409.1s, 409.1us and 331.2-N versions of the VAG-COM software from http://www.ross-tech.com/vag-com/download/archives.html

    but no luck. The lead is not detected on COM Port 4.

    Bonus Question: my lead has an LED on the ODBII connector, should that light up when the cable is plugged in or being polled?

    Cheers,

    Mark.
    #5
  6. garratt83
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    garratt83 Member

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    Have you checked to see if it needs USB legace support in the bios. If there should be a light on it it might want some power
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  7. timps
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    timps Shakersville

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    So to recap as I am not to sure what you have tried.

    You have set the same comport (COM 1 - 4) settings manually in device manager windows XP and also in options in vag-com (COM 1 - 4 ) (not usb)

    And when you press test it says “port does not exist. Interface not found !”

    Have you tried switching com numbers to different ones.
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  8. MarkyB
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    MarkyB Member

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    I've tried it on COM Ports 2 and 4 (the others are in use) using VAG-COM 409.1s

    The error message I get is

    Port Status: OK
    Interface: Not Found!

    and it won't allow me to save the setting.

    Cheers,

    Mark.
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  9. timps
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    timps Shakersville

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    “port does not exist. Interface not found !” this is a problem

    “Port status ok Interface not found !” this is not a problem

    You will only get Interface found connected to the car with the ignition switched on so the dash warning lights are active.

    Edited to add: You can only save the settings once you have tested the interface connected to the car with the ignition on.
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  10. MarkyB
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    MarkyB Member

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    D'oh!!!! :keule:

    I'll go check it on the car...

    Cheers,

    Mark.
    #10
  11. Aky
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    Aky Aky

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    Nice one - I've had the same problem. I'll spec it out tonight:thumbsup:
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  12. MarkyB
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    MarkyB Member

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    It works! If only I'd tried it on the car I could have saved myself an afternoon's worth of frustration.

    Cheers,

    Mark.
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  13. MarkyB
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    MarkyB Member

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    An FYI to those with the alpha-bid VAG-COM lead; the indicator LED on it will light up when you plug it into your car :)
    #13

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