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G-P

Member Since: 27 Oct 2019
Location: Cambridge
Posts: 16

Heated front screen wiring HELP

Hi All,

So I thought I would have a go at fitting the wiring for my heated screen, however I am unsure as to what wire I should be joining the new loom up to.

I have a yellow wire that needs a ignition live.
Red and orange
black

Presumably I can use the red/orange and the black from the heated rear screen switch but what’s the best one to use for the yellow? The instructions said that it needs to be from the radio but it does not say what colour wire.

Any help would be great as I have a 90 looking sorry for itself in the garage.

29th Aug 2020 7:24pm

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2196

2002 Defender 110 Td5 DCPU Keswick Green

I would think the white/green from the heated rear window switch would be suitable if you only need an ignition live for the switch and relay. The radio switched live is also live in key position I which isnt really right for the heated screen.

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29th Aug 2020 7:33pm

G-P

Member Since: 27 Oct 2019
Location: Cambridge
Posts: 16

That makes sense, no issue with using the same switch for the red/orange and black wires as well?

What’s the best way to check the heated screen is actually working correctly? Volt meter in the window connections?

Thanks

29th Aug 2020 8:13pm

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2196

No cant see any issue with taking all of the switch feeds you need from the HRW switch as long as they are only feeding the heated screen switch and relay.

To test, as you say, multimeter over the terminals at the screen to check you have voltage.

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30th Aug 2020 9:17am

G-P

Member Since: 27 Oct 2019
Location: Cambridge
Posts: 16

Thanks for your help, all up and running now. I managed to put the dash back with no leftover screws as well.

31st Aug 2020 9:56pm

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