have and ice maker that dont want to get water.wont do anything,did you think is the valve,ice maker,or mother board

Try switching the leads on the water valve and pressing the water dispenser then look to see if it put water in the icemaker.
Here's your parts breakdown Model GC1SHAXMB00

Nat

where could i get a part brakedown of model #25358687895

LOL!!! This looks light guessing 101. LOL!!! The first thing you need to do is look at the fingers that knock the ice out. They should be at 3 o'clock. The fingers should be just above the horizon of the icemaker. If not replace the icemaker. If they are, lets run a cycle. Take the cover off the ice maker, and you will see holes with letters next to them. Get a piece of wire, about 8 inches long, and strip back the ends, about a half inch, and stick 1 end in the M hole, and the other in the N hole, and the motor should start turning. If not replace the motor module. If it does turn, count to about 15, and then pull the jumper wire out of the holes. If the icemaker completes the cycle, and no water comes in, you either have a bad water valve. That is the part that the water line connects to. Or you might want to check the water tube that drops the water into the icemaker to be sure it is not frozen. Let me know what you find. Tom ApplianceEducator.com