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PWC1c



Member Since: 10 Oct 2015
Location: Hertfordshire
Posts: 193

United Kingdom 2015 Defender 110 Puma 2.2 SW Auto Santorini Black
Alarm
I have a problem the Alarm on my 16 Model year Defender sets off when locking about one in five times of locking any ideas ?
Its frustrating as you have to lock it with the Key which i guess you then lose the protection of the Alarm .
Post #763141 13th Mar 2019 8:54am
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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2494

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black
Quick, get it back to dealer under warranty before it runs out, or has it just run out, hope not. Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8
Post #763158 13th Mar 2019 10:39am
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PWC1c



Member Since: 10 Oct 2015
Location: Hertfordshire
Posts: 193

United Kingdom 2015 Defender 110 Puma 2.2 SW Auto Santorini Black
Its been back and they said they cant find the fault i even had a video to show them !
Post #763163 13th Mar 2019 11:09am
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 719

Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
Does the alarm go off when locking with the key?
From memory key locking only disables the perimeter bit of the alarm ( the internal sensors) You should still have immobilisation and alarm on the doors.
If it only goes off on fob locking it might be the internal perimeter sensors causing trouble.
Have you changed the fob battery and tried re-synching the fob to the car to eliminate these as a problem.
Post #763166 13th Mar 2019 11:16am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16808

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It should be possible to interrogate the alarm ECU (the non-Lucas AS10 substitute on your vehicle) and see what event triggered the alarm i.e. which volumetric or perimetric sensor.

You dealer is being typically useless and disinterested if he doesn't do this, demand a better level of service!
Post #763171 13th Mar 2019 11:43am
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PWC1c



Member Since: 10 Oct 2015
Location: Hertfordshire
Posts: 193

United Kingdom 2015 Defender 110 Puma 2.2 SW Auto Santorini Black
Thanks for the replys

I had the Fob Batterys changed but still happens

Alarm does not trigger when you lock manually when Alarm sounds on fob locking

Dealer said not faults show
Post #763173 13th Mar 2019 11:49am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5408

2006 Defender 110 Td5 USW Zermatt Silver
Disconnect the interior sensor and try for a while. You can also bypass bonnet switch early and also try that if no luck with interior sensor. They are the most common probs.
Post #763175 13th Mar 2019 11:54am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16808

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
PWC1c wrote:
Dealer said not faults show


He shouldn't be looking for faults. If the alarm is working OK but one of the triggering sensors is faulty, no faults will show since the alarm thinks that a genuine event has occurred. The Lucas AS10 will tell you what event triggered the last alarm and hopefully the thing that replaced the AS10 will do the same, so if he locks the vehicle and the alarm sounds, it will tell him what the alarm thinks has happened to cause the alarm to sound. It may be that this will allow the fault to be traced to, for example, the volumetric sensor.

It is also possible that it is a fault with the alarm ECU itself, in which case probably nothing will show.

Either way, if the vehicle is under warranty and has a demonstrable fault, I don't think it is acceptable for the dealer simply to say that he can't find anything wrong.
Post #763186 13th Mar 2019 12:40pm
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