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DISCO3.CO.UK > Technical (D3)

What’s this wire?
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4
What’s this wire?

Swapping my battery around at the weekend I noticed I had a thin black wire attached by a nut onto my negative terminal.

Any idea what this is and should it be there?  
Post #190185115th Jan 2018 6:18 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10363

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

sounds after market fitment

so no idea  
Post #190186415th Jan 2018 7:16 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72787

Ukraine 

Sounds like it, any corresponding wire to the +ve terminal?   
Post #190186515th Jan 2018 7:17 pm
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

No nothing to positive which is what confused me?  
Post #190187115th Jan 2018 7:26 pm
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

A couple of pics to show better







I don’t understand what could be using the negative, I’ve fitted the hands free and dash cam myself and have nothing else?  
Post #190187815th Jan 2018 7:38 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72787

Ukraine 

And strange returned to the -vet on the battery, not just an earthing point somewhere nearer to where whatever it is that's powered is placed. Confused   
Post #190188415th Jan 2018 7:50 pm
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

Strange isn’t it? It’s barely held on too which is concerning. I’ll have to follow it and see where it ends up.  
Post #190188815th Jan 2018 7:56 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13635

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

wonder if someone has run an extra earth to the chassis or body , maybe had an issue in the past

as from the photo it looks like a 16mm cable and assume u haven’t got a split charge system fitted   
Post #190189615th Jan 2018 8:18 pm
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

Would this be the only indication of a split charge system? The previous owner did tow if that has any bearing?  
Post #190191015th Jan 2018 8:51 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13635

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Hi

no, u would also have a spare aux battery and relay , along with a positive connection to the main battery

only thing i can think of is that extra body /chassis earth

suppose the only way to be 100% is follow the lead Whistle   
Post #190201616th Jan 2018 3:08 am
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mallo
 


Member Since: 10 Feb 2009
Location: Jersey
Posts: 351

2005 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Disconnect it and see what stops working...... or as you say follow it and see where it goes....  
Post #190204116th Jan 2018 9:25 am
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1782

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

May have had problems with engine earthing  
Post #190204516th Jan 2018 9:36 am
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12709

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

looks a bit thin for engine earthing ... battery condition checker ? or repair to a failing earth point somewhere?  
Post #190204616th Jan 2018 9:39 am
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PeteHse
 


Member Since: 13 Sep 2015
Location: Lincolnshire
Posts: 202

England 2011 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

UPDATE....

So I’ve been out trying to find an obvious fault for my suspension light coming on. I was swapping my battery out with one out my bmw and took more pictures.

It’s a wiring loom of sorts with a relay and manufacturing label on it (just dates etc) and eventually terminated at fuse f19 with a 15amp fuse. I don’t really want to remove it incase I do something to the car as I need it for the weekend.






Any ideas? I’m stumped.  
Post #190505722nd Jan 2018 8:56 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13635

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

hi

just looked in my owners manual and doesn’t indicate anything

wonder if could be a loom for front lights etc

will have a look at some of the wiring looms and see if anything comes up to help identify it   
Post #190506422nd Jan 2018 9:02 pm
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