Thanks Jon! Very helpful!!
BTW,I need to come up with a real signature to show
what vehicles I even talk about on here...
Steve P.
--- jon@dakota-truck.net wrote:
>
> Steve Preston <steveophonic@yahoo.com> wrote:
>
> > I've been trying to think of the best possible
> > connection point,but the solenoid driver circuit
> > really is the best. Has to be a high current 5
> volt
> > supply. I would imagine they use some type of
> > heat-sinked transistor inside the PCM case to
> drive
> > each solenoids,unless the solenoids themselves are
> > really light duty. Can't imagine they would be for
> > auto use. If they are driven directly by an
> I.C.,that
> > tends to make me nervous.
>
>
> Yeah, I wouldn't expect the PCM to drive them
> directly. That's
> sort've what I was thinking when I mentioned tying
> into the solenoid
> area. Obviously I'm working off of big assumptions
> and have no idea
> how the system works, but maybe the signal from the
> PCM is simply
> activating some external module, or possibly
> activating the solenoid
> through a relay in the PDC. If that is the case,
> chances are you
> would be tying into 12v instead of 5, but you could
> be guaranteed of
> the higher current capability and you can either use
> a 12v LED/lamp or
> just use a 7805 + heat sink to drop it to 5v for
> your LED.
>
> BTW, I just did a google search for MDS solenoid
> and stumbled across
> the following page which briefly mentions how some
> owners have added
> an "MDS on" light as well as some other basic MDS
> info. This is for
> the Grand Cherokee, so the PCM pin they mention may
> not apply to you,
> but might be worth taking a look at just in case:
> http://www.wkjeeps.com/wk_engines.htm (The MDS info
> is down near the
> bottom of the page, but there is a fragment
> hyperlink to it near the
> top of the page also.)
>
> Along those lines, here's a web site which has a
> downloadable PDF
> version of the '06 Ram FSM:
> http://tinyurl.com/2tbrmg The '06 Ram has
> MDS, so that would have the full wiring diagrams and
> all that good
> stuff. I don't recall what year and model vehicle
> you are doing
> this on, but even if its not a Ram, that info may be
> helpful to you.
>
>
> --
> -Jon-
>
> .- Jon Steiger -- jon@dakota-truck.net or
> jon@jonsteiger.com -.
> | '96 Kolb Firefly, '96 Suzuki Intruder,
> Miscellaneous Mopars |
> `--------------------------------
> http://www.jonsteiger.com --'
>
>
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