Ice maker for Whirlpool fridge not working

I’m sure that this is posted somewhere but I can’t find it with the search function. Anyway, my Whirlpool ice maker quit working and I’m not sure where to start troubleshooting. The water will not fill the ice tray but the water in the door works. I thought the water line was frozen but it’s not. I don’t hear the motor fire when it fills the trays either. Normally I can hear it but it hasn’t come on in the last hour. Can someone point me in the right direction for a troubleshooting guide or schematic? I’m an electrician so I can read diagrams but can’t find any on the net. Any help would be appreciated.

Thanks.