I changed the drain pump because my Maytag dishwasher was not draining. Now it drains continuously and does not let water fill the dishwasher tub. As soon as dishwasher is plugged in, drain pump starts.
Here are your parts includes a wiring diagram.
Parts for Maytag MDB8600AWQ Dishwasher - AppliancePartsPros.com
Below is a manual which may be helpful.
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http://appliancejunk.com/forums/index.php?action=downloads;sa=downfile&id=83;t=1402827200
Sounds like the bad pump motor also took out the control board.