All elements don't seem to turn off

Already have the diagnostic manual to a similar model. Bake element hidden but broiler element exposed. Set oven to 350 but the elements never seem to turn off after preheat to 350 exceeding 600F based on my temperature gun. Since bake element is hidden I tested the DBL relay to bake and broil element connection on relay board with the oven slightly pulled out of the wall. Both get constant 240vac until I hit cancel on panel making me believe it’s not a stuck relay. Also tested temperature sensor connection molex leading to the clock board (unfortunately after oven was hot) and as the door was open, resistance was dropping leading me to believe its most likely not the sensor but possibly the clock board not processing the readings? I’m thinking to replace sensor and clock board what do you guys suggest?