I can't confirm. I can deny that, though.
The mega fuse is inline between the alternator and the positive battery terminal. a blown fuse would keep it from charging. it would, however, also illuminate the charge indicator light at all times, as well.
Check your alternator connections, using the alternator how-to (under the duratec maintenance FAQ) for visual reference. Check the ground from the alternator to the chassis, and the connections from the battery to the chassis, and battery to the alternator.
