How to test the touchpad in a Whirlpool dishwasher

PROBLEM: WON’T RUN AND LED ABOVE KEY(S) IS BLINKING
Stuck key(s) or shorted circuit(s) in keypad.

Checking keyswitch contacts:
■ Unplug dishwasher or disconnect power.
■ Remove connector P1 from the control board.
Using the table below, measure the resistance across the switch when the key is pressed.
NOTE: The meter must be connected with the proper polarity.

If using an ANALOG readout meter:
The resistance reading should go from infinity (open circuit) down to a readable ohm level.
The level may be different depending on your meter, since there is a diode in the circuit.

If using a DIGITAL readout meter:
The resistance reading should go from infinity down to a readable ohm level.
The level may be different depending on your meter, since there is a diode in the circuit.
If available, you could use the “Diode Test” function of a digital meter, which will give a voltage of about 1.2 VDC during the test.
➔If any switches fail this test, replace the console panel/keypad assembly.
➔If all switches test OK, replace the machine control board

KEYSWITCH  RESISTANCE CHECK TABLE
KEY . . . . . . . . . . . . . . . . . . +Pos. Lead . . .  –Neg. Lead

CANCEL/DRAIN . . . . . . . . . . . . . . . P1-12 . . . . . . P1-2
SOAK & SCOUR . . . . . . . . . . . . . . . P1-11 . . . . . . P1-3
DELAY HOURS. . . . . . . . . . . . . . . . P1-12 . . . . . . P1-3
ANTI-BACTERIA/BAKED-ON COOKWARE. . . . . . P1-13 . . . . . . P1-3
HIGH TEMP SCOUR/HIGH TEMP SCRUB. . . . . . P1-11 . . . . . . P1-4
START . . . . . . . . . . . . . . . . . . .P1-12 . . . . . . P1-4
POTS & PANS/HEAVY . . . . . . . . . . . . .P1-13 . . . . . . P1-4
SANI RINSE . . . . . . . . . . . . . . . . P1-11 . . . . . . P1-5
RINSE ONLY/QUICK RINSE . . . . . . . . . . P1-12 . . . . . . P1-5
NORMAL WASH/NORMAL . . . . . . . . . . . . P1-13 . . . . . . P1-5
AIR DRY/ENERGY SAVER DRY/NO HEAT DRY . . . P1-11 . . . . . . P1-6
QUICK WASH/QUICK CLEANUP/TIME SAVER. . . . P1-12 . . . . . . P1-6
CHINA/LIGHT. . . . . . . . . . . . . . . . P1-13 . . . . . . P1-6