The test for ohms should be done with the POWER OFF. Ice maker module test for Whirlpool icemaker: Ice maker must be plugged in to the refrigerator.

I show you how to test and replace a Whirlpool Ice Maker Assembly. If no water comes into the ice maker during the test for the water valve, check the fill tube for the ice maker next. This applies to Whirlpool and some Kenmore model refrigerators. (Make sure your test probes go into the test points 1/2".) Shut-off arm down and the freezer is cold ( below 15 F ). Test points L & N will verify 120 volts to Ice Maker module. Test points T & H will verify if the bimetal thermostat is open or closed.