Thanks, Ron. Hopefully I won't need it.
UPDATE:
Again, the switch fought me every which way. Took an electric jack hammer(kidding) and a drill to get the other 2 screws out, to get to the switch assembly. Finally got it apart. The contact were clean. On both sides! Contact were nice and shiny. Not bad for 16 years.
Meter time. Wait a minute... No continuity between 2 contacts and their wire ends! Brought out the large soldering gun. Zapped them both.
Continuity!
Put switch back together. There now is continuity between the 2 little wires that I didn't have before. The blue/yellow and the blue/black now are bridged electrically when key is on. (Thanks, Ben for wire education. Interesting how much I've forgotten!)
SO...my educated guess is...the switch will now work. Unfortunately, I won't be back in Phoenix for a couple of weeks to see if that's the cure.
Thank you to everyone with ideas.
The forum works...again!!
(and of course, I forgot to take pictures)