At the end of a normal dishwasher cycle (the dishes came clean), the dishwasher never ended the pump out cycle. Even with the door open, it keeps pumping. Adding water from a bucket to the front, it keeps pumping. After cancelling and cycling the breaker, it keeps pumping.
I know from prior experience this is a "timed fill" machine that does not know how much water went in, just opens the valve for a given amount of time.
What part may be defective for the drain? The https://www.bosch-home.com/ website lists parts but no diagnostic methods. There is a "Water Level Control Assembly Timed-Fill" 00440670
What sensor could I short out or open, to test the theory it's a bad water level sensor?