First thing to check is,

The fill tube to the icemaker, is it frozen or clogged?

The harness in the upper door hinge(under the plastic cover), check it for loose wires or connections.

The next check is, test the fill valve solenoids for 500 to 1000 ohms on each solenoid(that's still not a guarantee they work).

With the cover off the front of the icemaker:

With a meter check openings L to N for 120 VAC, for power into the icemaker.

With an insulated jumper wire, insert into openings L and V (or N to V,on certain icemakers) and valves should open and icemaker should fill.

If all the other checks are proper, and there is still no water to icemaker, suspect the fill valve(s).
:) :) :)

Guy,

With the valves activating with the jumper wire, and everything else checked OK,

That would indicate a failed fill circuit in the ice maker control module.

I reccomend you replace the icemaker assembly,

Part number: AP4135008