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.

Reply to
Simon Barr
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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?

Reply to
Neil Brownlee

In message , Simon Barr 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.

Reply to
Marc Draper

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

Reply to
Simon Barr

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

Reply to
Simon Barr

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.

Reply to
Simon Barr

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