My alarm went bonkers today.... at 2am !

Peter De La Mare

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Of course, it wasn't going to have a fit any any other time of day is it...nooooo, 2am in the morning! :mad::mad: It sounds once, then goes quiet for a while, then sounds again.

So I unlocked the car which obviously disabled the alarm. I then had a quick scratch and ponder about my life as I recovered from the rude awakening. In this time the car locked itself and again the alarm went off.

So I get dressed and go outside to see if there's anything up. I get into the car to see if there's anything flying around, there isn't. I get out and open/close all the doors to check everything and it all seems fine. I disable the Anti-Tow and Interior Motion Sensors and then lock up.

It was fine after that. This morning I unlock and lock to reset everything and it's still fine.

Any ideas what might be up? Is there any simple tasks to check the operation of the two sensors?
 

television

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just one spider or bug in a sensor can do that,or a window a few mm down. just using the remote out of the house window does not do much, a door on the car needs to be opened and closed to completely re set the thing
 

Blobcat

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I've had a moth set the Caravelle alarm off twice, always during the early hours.
 
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Peter De La Mare

Peter De La Mare

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Further to this. Whilst I was driving just now, the 'Bonnet Open' warning popped on on the dash twice.

Alarm also sounded after I'd parked up for 20 mins.

An intermitant bonnet sensor would cause the problem, so I popped the bonnet when I got home and found the bonnet sensor half hanging out of the latch. I have had the bonnet open quite a few times in the last couple of weeks.

Hopefully that should sort it.
 

Blobcat

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Further to this. Whilst I was driving just now, the 'Bonnet Open' warning popped on on the dash twice.

Alarm also sounded after I'd parked up for 20 mins.

An intermitant bonnet sensor would cause the problem, so I popped the bonnet when I got home and found the bonnet sensor half hanging out of the latch. I have had the bonnet open quite a few times in the last couple of weeks.

Hopefully that should sort it.
It's very nice to find out the cause to a problem like this and it does sound as though you have found it.
 

television

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Further to this. Whilst I was driving just now, the 'Bonnet Open' warning popped on on the dash twice.

Alarm also sounded after I'd parked up for 20 mins.

An intermitant bonnet sensor would cause the problem, so I popped the bonnet when I got home and found the bonnet sensor half hanging out of the latch. I have had the bonnet open quite a few times in the last couple of weeks.

Hopefully that should sort it.

Good one,,I think that it is an engine out job to get to the bonnet sensor on my SL
 
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Peter De La Mare

Peter De La Mare

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Blobcat

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Good one,,I think that it is an engine out job to get to the bonnet sensor on my SL
Probably easier to start in the boot and work forward...:rolleyes:
 

television

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