Make your own, you get no support. Support the vendor, buy theirs.
It's the best damned diagnostic tool out there. We recently replaced
a bunch of older stand-alone tools with a Snap-on MODIS. It works
fine, but I still bought the new VAG-Com update. It's that good.
I'm using the software in shareware mode with an adapter I built from a
schematic I found on the web.
I've diagnosed a few problems very nicely. I would not hesitate to buy the
software when I need it for more.
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