Hi everyone,
I’ve got a J2534 VCI interface that I’m trying to use with DiagBox 7.57, but Windows isn’t recognising it properly.
I’m running Windows 7 32-bit (legitimate installation).
As you can see in the picture, the VCI appears under Other devices with a yellow warning symbol. I’m guessing the correct drivers aren’t installed.
I also tried Interface Checker, but it says:
INIT KO
Does anyone know what drivers and firmware I need to install for this J2534 VCI to work with DiagBox 7.57?
Is there a specific firmware version that needs to be installed/flashed, or a particular driver package I should use?
Any help would be appreciated. I can also post the Hardware IDs from Device Manager if that would help identify the correct driver.
Thanks!
J2534 VCI not recognised by Windows DiagBox 7.57
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Krazy8
- Posts: 9
- Joined: 18 Jul 2026, 15:08
J2534 VCI not recognised by Windows DiagBox 7.57
Last edited by Krazy8 on 07 Sep 2026, 19:55, edited 1 time in total.
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mickthemaverick
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Re: J2534 VCI not recognised by Windows DiagBox 7.57
No sign of a picture? 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
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Krazy8
- Posts: 9
- Joined: 18 Jul 2026, 15:08
Re: J2534 VCI not recognised by Windows DiagBox 7.57
Oops! Sorry should be there now!
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mickthemaverick
- Forum Admin Team
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Re: J2534 VCI not recognised by Windows DiagBox 7.57
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
-
Krazy8
- Posts: 9
- Joined: 18 Jul 2026, 15:08
Re: J2534 VCI not recognised by Windows DiagBox 7.57
I've tried this but say the same thing happens. But the first time i launched it this popped up.mickthemaverick wrote: 07 Sep 2026, 20:00 Have a look at this:
https://www.boschdiagnostics.com/J2534drivers
![]()
However the supplier of the VCI hasnt provided me with any firmware or anything.
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mickthemaverick
- Forum Admin Team
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Re: J2534 VCI not recognised by Windows DiagBox 7.57
What happens if you answer Yes on that screen? 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
-
Krazy8
- Posts: 9
- Joined: 18 Jul 2026, 15:08
Re: J2534 VCI not recognised by Windows DiagBox 7.57
It just proceedes to the installation where it then completes seemingly sucessful. If I launch it afterwards again it asks if I would like to uninstall the drivers or repair them.
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SoultanosTHP
- Posts: 1
- Joined: 02 May 2026, 17:30
Re: J2534 VCI not recognised by Windows DiagBox 7.57
No support passtru this version is very old. good luck!
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Krazy8
- Posts: 9
- Joined: 18 Jul 2026, 15:08
Re: J2534 VCI not recognised by Windows DiagBox 7.57
Do you mean the diagbox version is old? If yes do you think updating it might help?
It does seem like windows is failing to communicate with the device since it doesn't appear in the interface checker.