Lite over the lock mark flashes and I cannot get any functions except draining to work. I checked door latch and various button configurations, but it will not leave that blinking mode. Is this the module?

Not necessarily. Here are some manuals: https://dl.dropboxusercontent.com/u/8010163/Kenmore_Ultrawash_Dishwasher.pdf
https://dl.dropboxusercontent.com/u/8010163/How%20to%20use%20Test%20Equipment%20Service%20Manu al.pdf
https://dl.dropboxusercontent.com/u/8010163/Whirlpool_Kenmore%20Dishwashers. Test all of your safeties because that's what it sounds like.