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Searching for CAN-BUS overview for VW vehicles Answered

Hello,

I want to start hacking my VW CAN-Bus. In detail, i want to sniff some vehicle data (RPM, Indicator status, gear status etc.)
For that I want to use an Arduino or RPI with a MCP2515 module.

Is there an overview which shows all available identifier for vw vehicles  build <2010?

Best regards

Discussions

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julianpe

3 years ago

Anyone?

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julianpe

3 years ago

I'am only after reading the data from the bus. I don't want to manipulate some data.

E.g. I want to show the rpm on a second screen.

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Downunder35m

3 years ago

My uncle is doing all sorts of stuff with engine electronics and from what I hear there is nothing he hates more than someone insisting he has to do a VW.
If there is any chance he simply refers the customer to the next Audi or VW dealership instead.
You do one setting wrong, you select the wrong cable, software or even software version for the access and the entire engine management system can go nuts.
If you only after data reading and can avoid interfering with the setups and settings your best option is to get a dedicated reader instead.
At least this way you can be sure you won't damage your car and that everything you see on the display is correct.

As said VW is quite strict when it comes to their software and access to it, so getting the required info would be easiest in a dedicated forum.
Some data readers also offer Android or Apple apps, so you only have a WiFi module for the data and the rest happens on your phone or tablet.

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julianpe

3 years ago

Do you have some more information or further links? What is a nda?

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verence

3 years ago

> Is there an overview

Yes there is / are. But anyone with access to such a thing has signed an NDA.

But especially for VW, you have to know exactly, what kind of version (type of car, type of engine, year or even month of build etc.) you need.