I am sorry but I do not have the information you require. I will opt out and another expert may be able to assist you. Sorry for the inconvenience.
Checking the lock motor or switches is not an accurate check for checking voltage to or from the control board or relay board to tell if it is working. The door lock will only be energized when in a self clean cycle for this unit. To tell for sure if the board is sending proper voltage to the bake element you will need to check check voltage to the bake element in a bake cycle.
(Edited by Moderator) I do apologize for the delay, my Internet connection had been down again. The power here lately has been questionable due to hurricane sandy. It is hard to get a good strong connection that doesn't crash all the time due to the damage in the neighborhood. So again, I do apologize for the delay. But just to let you know I have over ten years working on these appliances in both factory and field settings and environments. And I have also helped design and manufacture them. So I know for sure that the test you've been asked to do here for the lock motor switch will not be a conclusive test for your intermittent heating problem of the bake element.
So if you would like more help from me I would delighted and more then happy to help you again. Just get back to me here and I will tell you how to properly check the voltage to the bake element so you can tell for sure of the board is and. Thanks.