Re: Error code reader
I might do a "How to" guide when i get time as it's a question that comes up often enough. It's not difficult and is becoming easier and easier as more stuff comes on the market. An interface is needed because you don't connect your laptop, with its own battery and voltage "directly" to your car that has it's own power supply and different voltage.
So you need an "interface" where things can "talk" to one another face to face without being directly connected
Something like this, you connect your laptop to one side and your car EOBD to the other (E just stand for European)
Or like this where it plugs directly on to the EOBD socket and you just plug your laptop into it with a serial cable or serial to USB depending onwhat you have on your laptop
Then you can run many programs, a lot of them are free to download. Picking up your fault codes is just the start. You can really see what is going on from your engine sensors
Here's a few screenshots
They all read off fault codes and such, that's just the start
But then it gets much more interesting when you do live recording whilst you drive along so you can see what's happening and just when it happened when you play back the recording at home. They're getting better all the time