Re: What is standard, and what's not?, Fiat Punto ECU

Ciao Fabio,
I use the activeX library (Tester-ActiveX ) from www.samtec.de .
It is a great base for your own program.
This program supports a lot of protocols.

--- In opendiag@y..., "f_fumi" <f_fumi@y...> wrote:
> It helps a lot! Do you know if there exists some freeware
> implementation of the KWP2000 for a PC, at least for the basic
> communication protocol. A source code fragment would be great.
Thank
> you,
> Fabio
>
> Fabio--- In opendiag@y..., "sander_qv" <sander.qv@z...> wrote:
> > Hello Fabio,
> >
> > The Fiat Punto (and I think all new european cars, also VW) uses
> the
> > kwp2000 (=?eobd) protocol. This is different from the protocol
> > kwp1281 on the VWinfo page.
> > In the files section of this group there are some documents about
> the
> > kwp2000 standard.
> >
> > For kwp2000 there are normally two ways to start the
communication:
> > the 5 baud and the fast initialization. The 5 baud init for
kwp2000
> > (and obd II) is a little different from the 5 baud init from
> kwp1281,
> > as at the end, the ECU does send an extra byte: the complement of
> the
> > ECU address. And it does not automatically send the ID, but it
> waits
> > for a request.
> >
> > For the motronic in the Fiat, you have to use ECU address 0x10
and
> > (if used) tester address 0xf1 I believe.
> >
> > Hope this helps,
> >
> > Sander.

 
Received on Tue Aug 27 07:45:25 2002