Defender alarm problem

Been a long time since I posted here, how's everyone doing? A lot of the
same old faces I see and I'm hoping the collective knowledge of the group
can help me out.

I've got a bit of a problem with the alarm on my 97 300Tdi 110.

The alarm keeps going off on it's own at random. Sometimes it is fine for a
couple of weeks, then it might play up three or four times in a couple of
days. The latest was at 3:55 this morning and it's got me determined to fix
it. In the past the alarm has gone off because of insects in the car, I
disconnected the ultrasonic sensors a couple of years back so it's not
that this time.

Does anyone know if there is a way of interrogating the alarm to see which
sensor triggered it? All the door switches seem to be working fine, but I
haven't checked the bonnet sensor yet, that suggestion turned up when I did
a quick google before this post.

Any ideas welcomed, I don't want to have to get up at some unearthly again
to turn the bloody thing off! It's mighty loud too with the horn and the
alarm sounder going together.

Thanks in advance,

Simon.



--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

Simon,

You can unplug the bonnet sensor - in their infinite wisdom LR have fitted
it so that if it is not there, it assumes the bonnet is shut....very
wise...NOT. This will at least knock it out of the system while you
establish what the cause is?

--
Neil

In message <[email protected]>, Simon Barr <[email protected]>
writes
>Been a long time since I posted here, how's everyone doing? A lot of the
>same old faces I see and I'm hoping the collective knowledge of the group
>can help me out.
>
>I've got a bit of a problem with the alarm on my 97 300Tdi 110.
>
>The alarm keeps going off on it's own at random. Sometimes it is fine for a
>couple of weeks, then it might play up three or four times in a couple of
>days. The latest was at 3:55 this morning and it's got me determined to fix
>it. In the past the alarm has gone off because of insects in the car, I
>disconnected the ultrasonic sensors a couple of years back so it's not
>that this time.
>
>Does anyone know if there is a way of interrogating the alarm to see which
>sensor triggered it? All the door switches seem to be working fine, but I
>haven't checked the bonnet sensor yet, that suggestion turned up when I did
>a quick google before this post.
>
>Any ideas welcomed, I don't want to have to get up at some unearthly again
>to turn the bloody thing off! It's mighty loud too with the horn and the
>alarm sounder going together.
>
>Thanks in advance,
>
>Simon.
>
>
>


Yes the alarm can be interrogated. I use ROVACOM but any landrover
diagnostic system should do it. That said some earlier versions of your
alarm do not store trigger events but it is worth looking.

If you are near west Kent I might be able to help.
--
Marc Draper
www.mdeng.co.uk

In article <[email protected]>, Neil Brownlee wrote:
> Simon,
>
> You can unplug the bonnet sensor - in their infinite wisdom LR have fitted
> it so that if it is not there, it assumes the bonnet is shut....very
> wise...NOT. This will at least knock it out of the system while you
> establish what the cause is?
>

Cheers Neil , that's a start. At least I can eliminate it from the suspect
list.

Strange decision that, assuming the bonnet is shut if no switch is connected.

Ta,

Simon

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

In article <[email protected]>, Marc Draper wrote:
> In message <[email protected]>, Simon Barr <[email protected]>
> writes
>
> Yes the alarm can be interrogated. I use ROVACOM but any landrover
> diagnostic system should do it. That said some earlier versions of your
> alarm do not store trigger events but it is worth looking.
>
> If you are near west Kent I might be able to help.

Marc,

Thanks for the offer but I'm in North Herts.

I'll get in touch with a local garage and see if I can find anyone with the
necessary kit to interrogate the system. Hopefully I've got a system that
stores the trigger events and it will identify the culprit.

Ta,

Simon

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

In article <[email protected]>, Simon Barr wrote:
> In article <[email protected]>, Neil Brownlee wrote:
>> Simon,
>>
>> You can unplug the bonnet sensor - in their infinite wisdom LR have fitted
>> it so that if it is not there, it assumes the bonnet is shut....very
>> wise...NOT. This will at least knock it out of the system while you
>> establish what the cause is?
>>
>
> Cheers Neil , that's a start. At least I can eliminate it from the suspect
> list.
>
> Strange decision that, assuming the bonnet is shut if no switch is connected.
>
> Ta,
>
> Simon
>

Bonnet sensor duly disconnected last night for testing.

01:00 this morning bl%^£y alarm goes off!

Oh well at least it's eliminated that switch. I think that leaves the five
courtesy light switches or the alarm system itself. I was wondering if maybe
this could have anything to do with the dry joints in the spider problem
some Defenders get, but I thought that affected the immobiliser, not the
alarm.

Simon.

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.