Kitchenaid dishwasher

Dishwasher will not start. Control panel has power. Can run diagnostic test all lights illum on control panel. Shut door cycles between normal and rinse cycle a few times then rinse cycle for a couple of more minutes. No lights stay on after this cycle. I do not have the sheet from the kick panel so I don’t know if this is a correct test. So once again, I can select any cycle, but when pressing the start button nothing happens.
Any help would be greatly appreciated.
Thank you

Check to make sure the water float inside is not stuck up and keeping the dishwasher from filling with water.

Thank you for the response.
Checked the float and it is not stuck. Float switch has continuity.
Checked voltage to water inlet valve. The only way I could get power to it was to do the diagnostic test. When it switched to normal I got 104 volts to the water inlet solenoid. If the water inlet valve does not work would that prevent the washer from turning on?