In case you just want to bypass the troubleshooting and go for a NEW unit:

rear window defroster

http://www.wholinks.net/Automotive/Accessories/High-Performance-Electric-Defroster--Defogger.html

This link is old, and doesn't work any more, but you can use it as a start.

thx

Start for WHAT? a fishing expedition?

Anyone would have better luck using Google and typing in "Window Defroster". (I did it)

http://www.google.com/search?sourceid=navclient&ie=UTF-8&q=Window+Defroster

ok my turn.

my defoger doesnt work. just went to test it and there is a current reading at the widow where the wires connect to the defogger. did daniels test and i am getting a reading on one of the lines. means one broken line. my question. so why if only one line is broken is the defogger not working at all?

cheers,

tom.

Here is a fairly simple explanation on how to test the grid:

http://www.ifsja.org/tech/electrical/defroster_repair.shtml

Zspecialties.com sells a heater/fan that mounts in the corner of the window. But to work your original circuit has to be working to power it.

defroster fan

I've seen an assortment of those blower type defrosters. Not only is it an easier fix, the fact that it BLOWS heat I would think would be a great bonus on those mornings waiting for the car to come up to temp. It may not be a lot of heat but heat is heat huh?

Here is a fairly simple explanation on how to test the grid:

http://www.ifsja.org/tech/electrical/defroster_repair.shtml

Tanny,

Thanks for linking that informative article. Your avatar still cracks me up every time I look at it.

Gary