Computer problem
2003 Ford Expedition V12 Front Wheel Drive Automatic 60000 miles
I get a PRNDL message on my display panel with a loud buzzing sound coming from the fuse box when I turn the key. This happened once before and I just move out of gear back to park and it worked. This time it did not work. Could it be the relay or fuse? and if it's a relay is that an easy replacement as a fuse or a little more to fix?