How to get data from wires

marmalade wrote 10/18/2021 at 04:35 0 points

This is a weird question, and I don't really even have the prerequisite knowledge to ask it properly, but basically, I would like to mess with my car's (E30) OBC (On Board Computer). I found a PDF ( - Page 110) that explains what wires go to what, but I have no idea how I'd interpret the data I'm getting. Is there a way to like, test these wires to find out what comes through them, and is there a way of interpreting that information? What kind of tool would I need? I'm assuming once I figure it out I can do something using an Arduino or Raspberry Pi 0.