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JustFX



Member Since: 10 Nov 2016
Location: Mendip Hills
Posts: 182

United Kingdom 2000 Defender 110 Td5 CSW Coniston Green
Alarm Randomly going off

Well since the non-starter the other Friday I have replaced the battery and made new connections for the terminals and that seems to be working well.

But...the Alarm has been causing me some issues and if set will randomly go off waking the neighbours... 3 am the other morning. I have disconnected the spare battery in case the lack of charge it has was causing a drain on the system. Well, 30mins after setting the alarm it went off in all its glory, I was mid-sip of a cup of tea. The battery at rest is reading 12.6V so I don't think that would be enough of an issue.

I am going to replace the key fob battery just in case it is that that is causing the issues.

Any other ideas?

side note, the starting is still occasional click so ordered a starter motor rebuild kit to be safe. 

Post #685859 11th Feb 2018 8:18pm
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RoddyK05



Member Since: 08 Apr 2015
Location: Inverclyde
Posts: 508

Scotland 2004 Defender 90 Td5 SW Yellow

It’s probably not, but check incase someone is triggering it deliberately to get you to stop setting it - ie someone is casing your Landy? Not trying to put the frighteners on you but better safe than Defenderless.

Post #685868 11th Feb 2018 8:40pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2825

England 2005 Defender 90 Td5 XS CSW Bonatti Grey

Mine did that often.
Try spraying WD40 into the door switches.
Stopped it on mine permanently. 

Post #685937 11th Feb 2018 11:44pm
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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 1160

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black

Check the bonnet switch. Make sure it is correctly located in the bracket on the bulkhead as it is only held in place by clicking it into the bracket. Santorini 90XS SW
Discovery Sport
Morgan Plus 8

Post #685955 12th Feb 2018 8:36am
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deaallen



Member Since: 15 Feb 2016
Location: Basingstoke
Posts: 147

United Kingdom 2012 Defender 90 Puma 2.2 SW Santorini Black

Mine has been doing this ever since I bought it, but only when I use the the key fob to lock it. If I lock the car using the key then I have no issues what so ever. I know its not a fix but it might be worth trying until you find one

Post #686344 13th Feb 2018 2:46pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 8844

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Locking it with the key doesn't enable the volumetric protection for the alarm. If this stops that alarm from randomly going off, it suggests a fault with one of the volumetric sensors perhaps (or you have the unusually large Landrover spider option).

Post #686349 13th Feb 2018 3:10pm
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JustFX



Member Since: 10 Nov 2016
Location: Mendip Hills
Posts: 182

United Kingdom 2000 Defender 110 Td5 CSW Coniston Green

I replaced all the door switches last year as I had an alarm issue. May have to have a second look at them.

No volumetric on mine as its an early model TD5 (2000)

Bonet switch is also worth a look. Hoping a good charge of the battery will sort it. 

Post #686636 14th Feb 2018 8:17pm
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Crossfit_Pete



Member Since: 07 Feb 2018
Location: N.Essex
Posts: 133

United Kingdom 2002 Defender 110 Td5 G4 Challenge Tangiers Orange

Mine went off twice tonight, I was thinking it could be the wind? I did rebuild the starter today though, could it be a bonnet sensor, or door? (2002, Td5)

Post #686637 14th Feb 2018 8:28pm
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mk1collector



Member Since: 17 Sep 2009
Location: huddersfield
Posts: 6242

England 2004 Defender 110 Td5 CSW Bonatti Grey

The Landrover spider Whistle Ray
My build thread
http://www.defender2.net/forum/topic17615.html

Post #686640 14th Feb 2018 8:33pm
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