Hi,
On our 1987 Lincoln Town Car, the rear window defroster has ceased working but I don't see anything wrong with the defroster in the window, so I suspect the inline fusible link. I know it is at the starter motor relay, but since there are several links there:
How can I tell which one is for the defroster?
How cas I tell if it is bad?
How do I repair or replace it?

Thanks,
Rick Mc