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Anyone got a wiring diagram for D4 heated front w/screen?
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HughMartin
 


Member Since: 30 Mar 2008
Location: Aberdeenshire
Posts: 751

Scotland 2012 Discovery 4 3.0 SDV6 XS Auto Aintree GreenDiscovery 4
Anyone got a wiring diagram for D4 heated front w/screen?

I am not getting any power to the left hand side of my D4 front heated windscreen. Fuse seems ok and as I think the relay powers both sides and the RHS is working, I assume it is ok.

I am also getting continuity through the windscreen to earth.

Any help will be appreciated.
  
Post #146636730th Apr 2015 6:34 pm
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Landyash
 


Member Since: 31 Jul 2012
Location: Nottinghamshire
Posts: 273

England 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Hi hughMartin I am sure it goes straight to earth, when switched on is there a 12 volt feed to one side?
If so the other will should be ground that's how it was on my old 2011 Defender.
Cheers Ash
  
Post #146643030th Apr 2015 8:03 pm
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zyrbagan
 


Member Since: 29 Oct 2011
Location: Moscow
Posts: 16

Russia 2011 Discovery 4 3.0 SDV6 SE Auto Santorini BlackDiscovery 4

Hi,
Right and left side of the window have different fuses - 40 A. 40 A!
The current through each glass 27.5 amps. Resistance of about 0.4 ohms.
You can pull out the fuse and test the heater on the ground. Using a multimeter.
On the right and left side of the window there are connectors. Sometimes connectors are burned. You need to remove the left and right covers and check the connectors.





Heated windshield. Electrical Wiring Diagram.

http://www.disco3.co.uk/gallery/albums/use...dsield.pdf
  
Post #146646330th Apr 2015 8:56 pm
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HughMartin
 


Member Since: 30 Mar 2008
Location: Aberdeenshire
Posts: 751

Scotland 2012 Discovery 4 3.0 SDV6 XS Auto Aintree GreenDiscovery 4

Thanks for the wiring diagram zyrbagan. That is exactly what I need.
  
Post #146654930th Apr 2015 10:26 pm
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Russell
 


Member Since: 24 Aug 2007
Location: Kent
Posts: 10564

United Kingdom 

Dependent o year the D4 does not always use a standard fuse, they use a thing that looks like a square dice
 MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club 
 
Post #146656030th Apr 2015 10:32 pm
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