GE Dishwahser model GSD5630D1 after dishwasher goes through all cycles about 2 inches of water in bottom of tub. Does this need a new sequence switch?

GE Dishwahser model GSD5630D1 after dishwasher goes through all cycles about 2 inches of water in bottom of tub. Does this need a new sequence switch?
Did you ever find the problem? I have the same one.

Where does the diswasher eject ist water? The garbage disposal? Can you hear water go into the GD, or the drain, through rinse cycles? Could be something as simple as a seed or obstruction in the drain hose.