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/...Dishwasher.pdf
https://dl.dropboxusercontent.com/u/...e%20Manual.pdf
https://dl.dropboxusercontent.com/u/...%20Dishwashers. Test all of your safeties because that's what it sounds like.