Re: Passive Anti Theft System - 2006 Mustang GT


<brett@xxxxxxxxxxxxxxx> wrote in message
news:1187560141.845456.253620@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Aug 17, 5:57 pm, Kruse <kr...@xxxxxxxxxx> wrote:
On Aug 16, 1:53 pm, "My Name Is Nobody" <nob...@xxxxxxx> wrote:

Most dealerships don't really troubleshoot problems anymore, they
replace
parts to eliminate problems. Any dealership service department is only
as
good as their weakest link...

Herein lies the problem, or at least part of the problem. The tech at
a dealership does not really troubleshoot anymore. The car comes in
with a problem at the first person to deal with it is the service
advisor/shop foreman. Because of the high volume that a big dealership
gets and tendency for certain models to have the similar problem, the
service advisor usually tells the tech what to look for and what to
replace before the tech can look at it. Usually the problem is fixed
or at least worked on before the tech can do troubleshooting. Hence,
the tech is left out of the troubleshooting.
Now if a problem comes in that has the service advisor baffled, the
tech quite often finds a TSB that tells him what the probable cause is
OR the tech gets on the 800 number to the manufacturer and a expert on
the other side of the telephone line tells him where to start looking.
Again, the tech is left out of the troubleshooting.
Now in each of these instances, the car gets fixed fairly (hopefully)
in the least amount of time and with the maximum profits for the
dealer, which in a way, is good. But the tech really has not learned
much about troubleshooting. He may have learned how to fix the car,
but not to troubleshoot.

OK, so the plot thickens. I put a Saleen Supercharger on the car - so
the dealer points to that and tells me I caused the problem. And,
although I only have one graduate degree, it happens to be in
Electrical Engineering (as is my undergraduate), so I know a thing or
two about computers and passive RFID (which I believe is the
technology on which PATS is based. I live in FL and I believe my PATS
issue is with the reader and is heat related, and has nothing to do
with the Supercharger and/or the re-flash of the PCM (for the
Supercharger). So, I'm basically on my own to figure this out. It is
quite annoying to have an otherwise great car that, when you turn the
key, you don't know whether the engine will start or not.

If this were a computer (or reflash) issue, it would not be
intermittent (as it is). It starts most of the time - it only locks
out once in a while, and like I said, it appears to be heat related.
It would be helpful to know what comprises the PATS circuit so I can
begin to troubleshoot the most likely cause of failure.

I have not had the keys redone, which I can probably talk the dealer
into doing. Any value in that? (Would prefer to hear from someone
who has had this problem instead of anecdotal advice).

Thanks,

Brett.


Well with more information the plot does indeed thicken.
You're basically screwed on the warranty angle, the modifications will make
any warranty claim nearly impossible, weather actually related or not.
As to trouble shooting, And here I have made a damn good living since 1980
being very good at trouble shooting computer controlled mechanical systems.
Yes in 1980, there was still a lot of relay logic control going on.

First off, this statement/position is not accurate, (If this were a computer
(or reflash) issue, it would not be intermittent (as it is).)
Many computer/reflash issues could have/be contributing to an intermittent
problem. Do you or have you ever run a Windows operating system computer?
Software related intermittent problems are basically the norm, not the
exception. Your exclusion of computer/reflash issues as a possibility,
might keep you from finding the problem.

You could be 100% right and have a heat related problem with your reader,
and still not have a Ford warranty claim. Your addition of an aftermarket
Saleen Supercharger has added a tremendous increase of heat.
If you suspect heat related reader issues, see if you can cool the reader.
How accessible is it? Canned air can be sprayed directly on a chip to cool
it, or a fan, or cool/ice packs.

Maybe there is some line of code in the reflash with some thermal protection
thing going on and the hot Florida sun combined with that are what is going
on?

You certainly can not rule the computer or the reflash out simply because
the problem is intermittent.


Good Luck





.

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