Thank you everybody for your input!
Last night I decided to take the speedo itself apart and check the connections there. However, I soon realized that the speedo wires go thru a round connector and then into the speedo which is all sealed. I cut the damn thing (it's just plastic), and then was able to see the three wires going into the printed circuit board. The speed signal wire was off, so I soldered it back on, put it back together, and now it works!!!
At first I thought that it was my actions that caused the wire to come off as I mistakenly twisted the round connector thinking it would unscrew, but I ended up twisting the wires and causing the plastic nut that lives inside the speedo to come undone. However, since my act of soldering it back fixed it, I have to think now that it was not me that broke it.
I wonder if this is what's happening with other people out there. The wires that go to the printed circuit board are very tiny, and I can certainly see where vibration could result in them breaking. Certainly replacing the speedo would have fixed it, but my dealer told me the speedo goes for $115. Seems a high price to pay for what amounts to a wire just needing to be soldered back on!
I'm going to see if I can figure out a way to duplicate the signal that the speeed sensor puts out. Then I'll either build a circuit that does the same thing, or use a wave generator. Seems to me if one can first determine that the speedo is indeed bad, then one has nothing to lose by cutting into it. I'll keep you all posted... could come in handy for those that are in the same boat I was in.
Thanks again for everones help... this is a GREAT site with a lot of good people!
:2thumbs: 
