Making my own code reader

[Wurm]

Hi all,

Something Ive been wanting to do for a while is make my own code reader for
my 98 SL2. It seems that you guys in the US can go to a certain store and
have it read for free, but I've never found that up here, and well, id like
the convenience of playing with it in my own garage . Now, actually doing
this should be fairly simple, just build my own cable and communicate with
the car on my Palm pilot, the only problem is that I need to know the pin
out as well as the communication protocol that is used. Is this information
public domain?, can I get my hands on this anywhere?

TIA!

Wurm

 

[David O'Rourke]

Hi Wurm

The information you are looking for is mostly public domain. The
maufactures use their own connectors, but even that information can be
found. Do a search for OBDII or OBD-II readers. However some information
is "extended", as such it is outside EPA reporting requirements, so only the
manufactures and some hackers know how to get it out of the computer.

David

 

[Wurm]

Hi,

Ok, thanks for the info, ill do some hunting this weekend . Heck, I gotta
find a use for the Palm and it seems hack jobs like this are the forte of
that machine.

Phil