Here are your parts
Replacement parts for WHIRLPOOL KUDM01TJBS0 Undercounter Dishwasher | AppliancePartsPros.com

Here is the tech sheet
http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208269519.pdf

You will notice on the keypad (console) that the 3 keys that do not work all have a common connection P1-4.
Check it with a meter. Note that your negative meter lead must be on p1-4 or you will not see the switch close when you press it. This is because of the diode in the line. Try both leads as some meters do not have the negative lead actually attached to the negative side of the battery that is used to measure resistance.

You may also want to try the following
Connector Cleaning / Checking
Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.