I would go to a professional mechanic to have him/her fix it.
Your issue could be an assortment of things; it could be the element in the rear window, wiring, or circuitry.
They make kits that are sold in most autoparts stores for repairing the broken wires on the rear defogger. Pretty inexpensive.
You can find a wiring diagram for the rear window defogger in a 1995 Ford Escort LX Haynes repair manual. The book is available at most auto parts stores.
The paint-on heating element has been damaged. Examine the bottom half for breaks or cuts in the heater element. You can purchase "paint on" repair material to make it work again, or you could purchase a new window if you're floating in money.
Replace the rear glass if you have determined all else in the system is working. The element wires are sandwiched between the inner and outer glass and are not serviceable of anything but the 240 series.
Some rear window defoggers are filaments built into the rear window that heat up when the rear defogger is turned on. This type of window should not be scraped with an ice scraper.
how to repair drivers side manual window for 2002 jeep liberty sport
Turn on the ac if you have it.
Ervin baran
In most cases controlled by rear window defogger switch
the rear window above the defogger
The fuse for the rear defogger is located behind the glove box. Just had mine replaced.
In most cases controlled by rear window defogger switch