Rear defrost does not work

[pajeff02]

PM sent.

[kool-aide]

so it seems like even one break in the rear element can cause the whole thing to fail. Would this be an accurate statement?

[kool-aide]

well after reading the list of trouble shooting steps.

it states if you are getting voltage at the connect but no defrost and switch light.

you have a bad switch, .

this means i have a bad switch and a second u-pull it switch that is bad.

guess i will be saving the big bucks for a brand new switch.

I get voltage in each step of the trouble shoot. bummer, well that's what you get for gambling on used parts, .

you have to know when to hold em, know when to fold em, know when to walk away, lol...


thank you pajeff02, that PM was just what i needed.

[pajeff02]

well after reading the list of trouble shooting steps.

it states if you are getting voltage at the connect but no defrost and switch light.

you have a bad switch, .

this means i have a bad switch and a second u-pull it switch that is bad.

guess i will be saving the big bucks for a brand new switch.

I get voltage in each step of the trouble shoot. bummer, well that's what you get for gambling on used parts, .

you have to know when to hold em, know when to fold em, know when to walk away, lol...


thank you pajeff02, that PM was just what i needed.

No problem -- glad I could help out. Now that you have a diagram and know what the wires are, try a jumper and see if it activates your defroster. You can also unplug and probe the back of the switch with a continuity tester to see what you get. I hate to see you invest in another switch.

[kool-aide]

I guess I could check 0 Ohms vs some Ohms for continuity. I don't think any of my meters tone for continuity like some of the fancy ones, such as a Fluke. Oh I wish I could afford a Fluke.

It looks like you would jumper Brown and Purple. The would be the ignition voltage to the rear defrost wiring. Hey, I could just drive with my defrost on 100%, lol.... Believe it or not I use mine to help warm up the morning dew down here. people think you don't need one in the south, but I find it can help with early morning dew.

At least if I jumper it I should get my 12V at the rear hatch connections.