Extruder motor wont run

Any ideas how to fix my extruder stepper drive . It is not the cable or the upper board or plugs. I have checked t them all and I have continuity all the way through. I have checked the stepper on another axis and it runs fine. Is there any thing I can do on the mother board or am I in for a new motherboard?

Sorry this should be in the M200 thread,

Hey there!
Please, describe the issue that you’re having with extruder.
Does the motor click when loading the material or it cannot push material through hotend when printing?