No, they have zero to do with each other. The front wheel speed sensors have nothing to do with the AWD. There are two prop speed sensors that the TCCM looks at to determine slip for the AWD.Also, the speed sensors are the abs sensor too?
What happens if you completely remove the encoder motor and drive around, does it change your issue?
It helps if you put your year/make/model/engine/AWD/conversion/etc in your profile or signature line so we know what we are working with now and in the future. So much easier than having to go search for it. https://www.astrosafari.com/account/signature