> "Bill" <b@b.com> wrote in message
> news:hngvk1hb2q12u677tb5sqrpdfuvlc7c37m@4ax.com...
> >
> > 1997 Dodge Intrepid, 3.5L, 225/60 R16 tires, w/o traction control
> >
> > 3 different scanners were tried on the Intrepid:
> >
> > 1. a Harrison model which uses a PC or a Palm PDA as the read out

> > 2. a Actron CP9135, which Autozone uses; and
> > 3. the usit used at the Texas car emissions test facility.
> >
> > 1. and 2. both worked on other cars, 1996 and up.
> >
> > My big problem is that here in Texas, I have to pass an emissions test

> get
> > the sticker and because they can't scan the PCM, they won't pass the

> > Can you or anyone else do a quick resistance test between pin 6 (HIGH
> signal
> > line) and ground? I get approx 15 ohms.
> >
> > If the cirsuit on the PCM that handles the interfacing from the outside
> world
> > was defective then that would explain why the PCM could run the can fine
> but
> > not talk to the scanner. What do you think?
> >
> > My last resort is to replace the PCM and/or the TCM. I am running out of
> time.
> >
> > TIA
> > Bill
> >
> > On Thu, 13 Oct 2005 15:51:25 -0400, "maxpower" <damnnickname@yahoo.com>
> wrote:
> >
> > >"Bill" <b@b.com> wrote in message
> > >news:ditsk1d2nmp0b1i5cqjiblker9r5rnv2fk@4ax.com...
> > >> Glen,
> > >>
> > >> This is a followup to my last post. Thanks for the pin assignments.
> > >> I finally got around to test everything.
> > >>
> > >> All pins at the ODBII connector check out. I did both a continuity

> > >from
> > >> the connector to the appropiate pins at the connectors to the PCM and
> the
> > >TCM
> > >> units, and to the grounded pins. All wires checked out.
> > >>
> > >> I also did a resistance test between each non grounded pin to the

> > >pins.
> > >> Results are:
> > >>
> > >> 5 to 6 ---> 14.94 ohms (ground to SAE J2284 high)
> > >> 5 to 7 --->   .13 ohms  (ground to K Line of ISO)
> > >> 5 to 14 -->  0.00 ohms  (ground to SAE J2284 low)
> > >>
> > >> Battery voltage at pin 16 is good.
> > >>
> > >> The scanner still won't sync with the PCM.
> > >>
> > >> What do you think? Bad PCM, TCM?
> > >>
> > >> The car runs good. I am at a loss.
> > >>
> > >> TIA
> > >> Bill
> > >>
> > >> On Sat, 03 Sep 2005 03:44:27 GMT, Bill <b@b.com> wrote:
> > >>
> > >> >Glen,
> > >> >
> > >> >Here is a more clear explanation.
> > >> >
> > >> >I plug in the Actron scanner, turn the key to ignition, and press

> on
> > >the
> > >> >scanner. The scanner sits there for a about 30 seconds, and finally
> > >displays
> > >> >"no response" from the pcm.
> > >> >
> > >> >Using another scanner (Palm PDM software and interface from Harrison
> > >(Houston,
> > >> >TX)), the software reposts "can't sync with the pcm".
> > >> >
> > >> >However, using the ignition key on, off, on 3 times method (to get

> > >MIL to
> > >> >blink out any codes) works ok. Anf the can runs fine.
> > >> >
> > >> >It is like one or more of the PCM data lines to the data link
> connnector
> > >are
> > >> >bad.
> > >> >
> > >> >Bill
> > >> >
> > >> >On Fri, 02 Sep 2005 05:37:42 -0400, "damnnickname"
> > ><damnnickname@yahoo.com>
> > >> >wrote:
> > >> >
> > >> >>First of all when you say it cant be read what exactly does that
> mean?
> > >does
> > >> >>it not give you anything? does it say something like no
> communication?
> > >Or
> > >> >>is it just a blank screen?
> > >> >>
> > >> >>Glenn Beasley
> > >> >>Chrysler Tech
> > >>
> > >Have you tried to connect the scanner to another vehicle? Not sure what
> kind
> > >of scanner it is, Does it do all years?
> > >And no I wouldnt replace modules based on that, if everything is

> > >leave it alone
> >
> What do you have at pins 3 and 11 of the data link connector, key on

> reading? 2.5 volts on both?