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Discussion Starter · #1 ·
Hi guys,

I'm trying to connect VAGCOM to a RNS system using a battery charger.
I don't have an Audi anymore, so I have to try to connect the VAG COM cable without car !

Does anyone have some experience with this?

Which pins should I connect ?

Maybe Dirk or Lee can help me out ?

regards,
Tony
 

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The VAG-COM cable needs to be powered and the K-line must be connected to the RNS-E. The easiest way is to get an OBD plug and a couple repair wires but I also used some female pins (no idea what they are called but they were the standar 3mm automotive plugs) and put them directly on the OBD plug on the VAg-COM cable.

This is the standard OBD connector (car side shown):


IIRC you need the following wires:
Pin 4 - Chassis Ground
Pin 7 - ISO 9141-2 K Line
Pin 16 - Battery Power
 

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You also need:

Pin 5: ground
Pin 1: +12V

The part numbers for the VAG connector and repair wires, as well as the RNS-E connector and repair wires are shown in the downloads section of my website.
 
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