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You will have to put an AF or AFD lens on the camera to be sure. In my experience, the af motors in the bodies are much more robust than the AFS motors in the lenses. I've had several AFS motors replaced and not one in-body AF motor dating back to my F4 and F5.
Agreed. I'd be surprised if the camera's AF motor is shot unless the camera has been dropped, damaged or abused. Stranger things have happened though.