Re: [opendiag] Re: Anyone worked with nissan maxima ECU's?

I'm not sure the consult-II can download (I think it
can) the ROM already in the ECU but I'm sure it can
upload one. I've seen service techs update the flash
with it.

Has anyone used GRID successfully on a A33 (2k-2K1 or
2k2-2k3) maxima? Using GRID requires desoldering the
ROM chip from the ECU, correct?

thanks

--- tbkolo <tbkolo@...> wrote:
> 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
>
>

__________________________________
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Received on Thu Jul 17 19:47:23 2003