2000 Hyundai Accent rear demister/defogger not working

2000 HYUNDAI ACCENT
90,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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DAVIDADDIS
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When the demister button is depressed the light comes on only as long as you keep it depressed.
There is no power at the rear demister terminals when the button is held depressed.
I have tested this with the engine running .
Is there any other condition that needs to be met for rear electric demister operation?
I dont have a circuit to follow so struggling a little .
I believe the button goes to a control and timimg module ?
I have been told the demister has never worked from new.
thanks in advance dave australia
Jun 20, 2015 at 12:29 AM
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RACEFAN966
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What do you demister? What have you done so far? I can provide wiring diagrams and such just not sure what you need. Get back to me and we will go from there ok.
Jun 20, 2015 at 6:38 AM
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DAVIDADDIS
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Fault rear window electric demister/defogger not working.
There is no power at the rear window. switch light comes on when switch depressed but doesnt stay on.
Jun 21, 2015 at 7:24 PM
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RACEFAN966
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I have included a wiring diagram below check the relay. when you push the button does the relay click you should be able to feel it.
Image (Click to enlarge)
Attached Media
Jun 22, 2015 at 8:01 AM
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DAVIDADDIS
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Hi , i cant download the wiring diagram.

But there is no sound inside the car when button pressed

is relay in dash or under bonnet thanks
Jun 23, 2015 at 8:04 PM
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RACEFAN966
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Relay is inside the car in the fuse box should be labeled
Jun 23, 2015 at 8:58 PM