Yes, in most cases, a car's AC fan can run even when the compressor is not working. The AC system in a car consists of several components, including the compressor, condenser, evaporator, and the AC fan(s). The compressor is responsible for compressing and circulating the refrigerant, which cools the air that is blown into the cabin.
If the compressor is not working or has failed, it will not be able to compress the refrigerant, and as a result, the AC system will not be able to produce cold air. However, the AC fan(s) can still be operational, and they will continue to blow air into the cabin. The air blown by the fan will not be cold since the refrigerant is not being circulated and cooled, but it will still provide ventilation and can be useful for moving air inside the car.
If your 2014 Nissan Pathfinder's AC system is not working, it's recommended to have it checked by a qualified mechanic or AC specialist to diagnose and repair the issue with the compressor or any other components that may be causing the problem.