Used a multimeter and the service guide to determine there was power coming into the range, but no power to either of the circuit boards. This led me to the themal fuse. To test, I broke off one of the tabs on the blown fuse and used it as a temporary splice. Everything started working, so I knew this was the culprit.
Replacing the fuse is easy, however clearance is a bit tight with the cooktop in place. If it should fail again, the repair would be less than 15 minutes. I bought 2 to keep a spare on hand.