How can I Troubleshoot rear defrost that does not work 2002 Ford Taurus?

Answer 1

First make sure your fuse to the rear defroster is good.Then test the wires that plug into the defrost bars on the rear glass, there are two plugs one one each side of the rear window.Take a tester and unplug the wires and test them for power, if no power you must have a bad connection from the fuse box to the back glass.If you have power and defroster still wont work you have bad defroster bars in the back glass, hope this helps you.