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robtd590



Member Since: 27 Dec 2016
Location: Somerset
Posts: 26
United Kingdom 2003 Defender 90 Td5 HT Oslo Blue
Can anyone help me with the heated rear window switch on defender Td5 (2003)

Switch part number is YUG000470LNF
Blue plug connector is YPC10525

I am trying to work out what the numbers 1-5 on the blue connector do. I believe pin 3 is not used.

Cheers
Post #592188 11th Jan 2017 4:32pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge


1 is Pos feed
4 is switch out to relay coil
5 is ground



Click image to enlarge

Last edited by dorsetsmith on 11th Jan 2017 5:15pm. Edited 2 times in total
Post #592195 11th Jan 2017 4:41pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6610
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Split to its own thread instead of with the tow electrics pinout Smile

1. White/Green [WG] +12V Ignition feed from fuse 14 via header C0285
2. Red/Orange [RO] +12V illumination from fuse 20 via header C0290 and C0296
3. no connection
4. White/Black [WB] 12V output to heated rear screen relay coil and dash warning lamp via header C0286
5. Black [B] Ground for telltale lamp and backlight


There seems to be an error on the 2002MY diagrams I have which has the ground connection on 4 in one place on the diagrams and 5 in another Rolling Eyes I have cross-referenced it with the Puma (same switch) and the Td5 electrical library and it is definitely 5.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #592196 11th Jan 2017 4:41pm
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robtd590



Member Since: 27 Dec 2016
Location: Somerset
Posts: 26
United Kingdom 2003 Defender 90 Td5 HT Oslo Blue
Thanks for your help guys.

I would like to use this switch to turn on/off an interior led light, I know they say it is not suitable for switching direct loads but do you think it would ok to operate an interior led light?

Cheers.
Post #592267 11th Jan 2017 8:33pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6610
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Absolutely fine for that.

The switches can't switch large power loads (e.g. heated screens) but they can handle reasonable loads - for example the heated seats are switched directly.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #592269 11th Jan 2017 8:35pm
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robtd590



Member Since: 27 Dec 2016
Location: Somerset
Posts: 26
United Kingdom 2003 Defender 90 Td5 HT Oslo Blue
Thanks for the info Martin, much appreciated.
Post #592300 11th Jan 2017 9:40pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6610
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
You're welcome  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #592301 11th Jan 2017 9:41pm
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