The dishwasher was not draining and giving OE code. Checked filters and nothing was clogged. Could hear a slight high-pitched whine when trying to run a cancel and drain.
Ordered the replacement drain pump, housing, and helpful suggestion while in there to replace the check valve.
The motor metered out normally but the impeller was completely seized up. Had my wife hold and tip the dishwasher to give me more room. Simple replacement, the dishwasher is working perfectly now.