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dead battery and now won't unlock on the key
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jonnybeer
 


Member Since: 18 Nov 2014
Location: Billericay Essex
Posts: 222

England 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3
dead battery and now won't unlock on the key

Hi all.

D3 has stood unused for a month or so and went to take her for a fuel up today but battery dead. Don't suppose the cold weather has helped and should have taken it for a run but been busy fitting a new kitchen at home. I now need to access the battery.

I remember reading a thread about pushing power up the grey hook up to put some charge in the battery, enough to open the door/bonnet but although I've searched cant seem to find it. Would be grateful if someone could point me in the right direction. Just to say I've tried the E.K.A. but just won't unlock

Thanks in advance.

John Bow down Bow down
  
Post #21029871st Dec 2019 7:03 pm
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

Yes terminal 3 should be the negative and terminal 4 should be the live feed in your grey socket, just connect a battery charger up for a while.
  
Post #21029911st Dec 2019 7:14 pm
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jonnybeer
 


Member Since: 18 Nov 2014
Location: Billericay Essex
Posts: 222

England 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Magic. Thanks for the quick response.

John. Thumbs Up Thumbs Up
  
Post #21029921st Dec 2019 7:20 pm
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pagoda
 


Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1923

Canada 2016 LR4 3.0 SDV6 Landmark LE Auto Yulong WhiteLR4
Re: dead battery and now won't unlock on the key

jonnybeer wrote:
Hi all.

D3 has stood unused for a month or so and went to take her for a fuel up today but battery dead. Don't suppose the cold weather has helped and should have taken it for a run but been busy fitting a new kitchen at home. I now need to access the battery.

I remember reading a thread about pushing power up the grey hook up to put some charge in the battery, enough to open the door/bonnet but although I've searched cant seem to find it. Would be grateful if someone could point me in the right direction. Just to say I've tried the E.K.A. but just won't unlock

Thanks in advance.

John Bow down Bow down


The car will unlock with the emergency key regardless of the state of the battery. You may need to spray in some lube to give it a better chance, but the flat battery won't stop the key working.
 PAGODA  
Post #21029931st Dec 2019 7:33 pm
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jonnybeer
 


Member Since: 18 Nov 2014
Location: Billericay Essex
Posts: 222

England 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Did try the E.K.A. with lube but didn't want to damage the fob. Managed to gain access using the grey connector. Went to a caravan shop and bought the female coupler, wired in t3 and t4 plugged it in and connected the jump leads from swimbos car. after a couple on minutes there was enough power to open the doors and bonnet. Battery now on an overnight charge, no damage done. Total cost £4. Thumbs Up Thumbs Up Thumbs Up

Thanks all.
  
Post #21031832nd Dec 2019 7:10 pm
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z1234567890
 


Member Since: 30 Nov 2015
Location: Dubai
Posts: 160

United Arab Emirates 2005 LR3 4.4 V8 HSE Auto Java BlackLR3

can somebody share more detail on this? LR4 dead battery and emergency key access only move left and right without unlocking the door
  
Post #23441362nd Aug 2023 3:47 pm
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