September 27, 2016 Thank you dave s. This morning I bypassed the switch and then went for a 3 hour / 120 mile ride and it ran flawlessly.
All weather, road, traffic conditions were similar to when it was displaying the CHEC.
The switch had oil in it so I guess it was able to let some current pass to ground, not enough to stop the engine but enough to activate the CHEC display.
I'll put a new switch on this winter and maybe figure out a way to seal the plunger from the throw off chain oil.
I hope this bit of knowledge helps others with the same issue.