Control board for PDW9280

I have a GE Profile PDW9820 dishwasher. The control panel is not responding except for the start stop button (which is good as it still can be used)
I assume the two possible issues are the control module or touch panel. Is there any way to figure out which is the issue?
Thank you
Stuart

Yes and no they work in pairs…There’s a pin test on the keypad but even after passing that it can still fail. try a diagnostic listed on your tech sheet and see how it goes