Re: Anyone worked with nissan maxima ECU's?

The consult in US might have 2 interfaces OBDII and original JECS
Consult. All cars sold in US after 1996 have to be OBDII compliant
and I'm not sure if it's possible to dump the ROM data through OBDII.
As far us I know there is no freely available Consult documentation.
The original JECS Consult connection uses totally different and very
complicated interface and protocol. JECS Consult uses Rx, TX, CLK
instead of L and K lines as OBDII does. For JECS Consult connection
you can use GRID's software to download the ROM data:
http://babelfish.altavista.com/babelfish/urltrurl?lp=ja_en&url=http%
3A%2F%2Fwww.grid.co.jp%2Fprod%2Fds%2Fromreader.htm
or I can get you one for half the price.
Tom

--- In opendiag@yahoogroups.com, "a_ser_files" <a_ser_files@y...>
wrote:
> tbkolo,
> is it possible to do that with iso or you need can bus adapter?
> And why it would not work for obdii? The consult used in US can
> reprogram obdii ecus just as easy... I have L30 ecu that I need to
> dump, give me some info... Or where to obtain the consult
> documentation.
>
> Thanks
>
> --- In opendiag@yahoogroups.com, "tbkolo" <tbkolo@y...> wrote:
> > Jonathan:
> > If your ECU is an Australian or Japanese market car (non OBDII) I
> can
> > suck the ROM data out for you. I can't tell you how to do it as
the
> > Consult protocol info costed me too much.
> >
> > Martin:
> > The same for S13, S14, not sure about S15, R32, R33, z32
> >
> > Tom
> >
> > --- In opendiag@yahoogroups.com, "Martin S" <martin.sniedze@t...>
> > wrote:
> > > I have pulled my Maxima (A32) ECU apart before, just to see if
it
> > > used standard Eproms, which it doesn't. It has a combined 16
bit
> > ROM
> > > with a few bytes of RAM, J lead SMD package.
> > > It is possible to remove it and read it, modify and burn
another
> (I
> > > have a friend you makes a living from such). Nissan can suck
the
> > rom
> > > data out using the Consult-II system. There is also a Japanese
> > system
> > > called GRID that can do it. Also some ECU's (age?) may have an
> > unused
> > > header on the PCB for a ROM expansion board. Similar to the
late
> > S13
> > > (240SX).
> > >
> > > If your car is post 1996 US built then OBDII might be a
> possiblity.
> > > On the Australian and Japanese market car it is NOT. Not even
> > current
> > > cars (I've tried).
> > >
> > > If you do much Nissan tinkering contact me off list as I am in
a
> > > closed Nissan EFI discussion group as well.
> > > Martin
> > >
> > > --- In opendiag@yahoogroups.com, Jonathan <alfsang@y...> wrote:
> > > > Has anyone here done any work with the nissan maxima
> > > > ecu's?
> > > >
> > > > I've seen articles where ppl de-solder the
> > > > micro-controller from the board and extract the
> > > > program for other cars.
> > > >
> > > > The problem here is a company named unisia jecs (I
> > > > think it's a subsidiary of Toshiba) created the nissan
> > > > maxima ECU and they pretty much sanitized the chip
> > > > names from every essential chip on the board. So I
> > > > have no idea who the chip makers are?
> > > >
> > > > My ideal goal is to learn to write to the ECU. I think
> > > > I will need to learn their pass thru or enhanced
> > > > OBD-II parameters to achieve this?? Nissan does this
> > > > with a unit they call the consult-II. Anyone who has
> > > > any ideas to get me started please feel free to
> > > > suggest.
> > > >
> > > > thanks
> > > >
> > > > __________________________________
> > > > Do you Yahoo!?
> > > > SBC Yahoo! DSL - Now only $29.95 per month!
> > > > http://sbc.yahoo.com

 
Received on Thu Jul 17 16:47:49 2003