I have an adapter cable that connects to the Diagnostic port and serial port of
a laptop.
There are three different electrical protocols being used by the auto
manufacturers and none are RS232/V.24. To build a cable you need to to have a
transciever that translates the diagnostic protocol to serial (or USB) that
your laptop can use. The module in my cable has the capability of translating
all three protocols to serial.
The cable was approximately $150 but it also came with a software tool that
reads and translates the codes into there definitions, has datalogging
capabilities and a dash board feature for real time monitoring of O2 sensors,
injectors, speed, throtle position, etc.
Dave Clement
99 SLT+ CC 4x4
In article <c93j8h$80s$1@bent.twistedbits.net>,
larryathey.nospam@larryathey.com (Larry L Athey) writes:
>
>
> Eeegads, they're real proud of their stuff. $275 for a complete package?
> Geez, a person could build a serial cable for about $10 to $15 in parts.
>
> Bernd D. Ratsch wrote:
> > You can actually buy this type of cable already from several sources -
> > http://www.obd2.com (is one of them)
> >
> > - Bernd
> >
> > -----Original Message-----
> > From: owner-dakota-truck@bent.twistedbits.net
> > [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Larry L Athey
> > Sent: Wednesday, May 26, 2004 4:55 PM
> > To: dakota-truck-moderator@bent.twistedbits.net
> > Subject: DML: Diagnostic Port Wiring
> >
> >
> >
> > I'm new here, so I'm sure this message has probably been asked and
> > answered numerous times. Please forgive me if this is redundant.
> >
> > Is there any chance at all that I could find out exactly what the
> > pin-out assignments are on the diagnostic port on a 99 Dakota? I've done
> > a lot of embedded programming and I've found that a lot of companies
> > simply use a 9600 baud 8N1 serial connection on diagnostic ports found
> > on everything from network routers all the way down to painfully simple
> > things like home appliances.
> >
> > So, what I would like to do is find out if by chance the diagnostic port
> > on a 99 Dakota is just a serial connection to the onboard computer. If
> > so, I'd like to make a serial cable to connect a laptop computer to it
> > with a basic terminal program running so I can see the error codes
> > without having to take it to Autozone or a Dodge dealer.
This archive was generated by hypermail 2b29 : Tue Jun 01 2004 - 10:59:13 EDT