rear deffoger

[networknewbie]

Hi yal my rear defogger works when it wants to now i cheked the switch its seem to be the problem <-- but im not so sure because when i press it i can here the relay click but the window dosent unfog is the relay before or after the fuse ?
Thanks

[Slateboy]

Here's what you do. Get yourself a cheap multimeter if you don't already have one. Turn on the defroster. Then take the multimeter to the back window. Test where the power is coming from to see if you get 12V. Then test the conductivinty throughout the lines on the back window. You're looking for breaks.

OR

Take a flashlight and shine it through the lines in the window. Look for breaks in the defroster lines. Some people are fluggin stupid and scrape off little pieces here and there.