Bobski- I put a 5.1k resistor (1.4W) into the same header pin as the switch, and still nothing. I also tried it the way you suggested, and nothing either. I know the switches work fine as I've tested them with my continuity setting on my multimeter, and it beeps when I press them. I also tried it with a 10k, and still nothing. I even did it with a 1k and I didn't get anything.
Nickdigger - My VSS seems to not want to put out 5v flat anyways. Closest I can get is 4.76v, and the low is 4.73v. It is a mechanical speedo, with an electronic VSS right behind the cluster. The part that moves the needle is mechanical, and that's what is broken, which is why I don't want to fix it, although it is getting more and more tempting. When I turn the wheel, it spits out a 0v/5v signal though.
100k- 1.73v
12k- 2.1v
1.2k- 2.193v or something similar.
It really is close to tripping the 'duino, but apparently not close enough.
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