Bad connection could be anywhere, bad alternator connection to the battery would make the battery supply all power as the engine runs, until it shuts down because the battery dropped out. Bad connection from alternator to PCM could mean the alternator does not charge because it is not being controlled.
The fuse would be Alternator S fuse, five amp and located in the fuse box under the hood on the drivers side. You could also check the ignition fuse but If the engine ran this one probably is not an issue.
Thursday, May 18th, 2017 AT 3:00 PM