Goto French version 
This web site has been created to share out all the informations I found on the WEB on the Volkswagen & Audi OBDII protocol.
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You will find under "Links" the adresses of the web sites that helped creating this one. |
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"Protocol" will give you my own point of view of the PC <=> ECU communication. |
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"Schematic" is the electrical interface between the PC and the car. |
ENJOY !