Alarm problem: more and more frustrating

[GO LEO]

Hi everyone,

had described my problem here already (alarm goes off when I open the car) and got some advice (disconnect battery to allow the system to "reboot").

Have now done this but without success. When I disconnected the battery it first seemed nothing would happen. But then after 1 minute approx. the siren made one short sound (sort of saying "I am still awake because I have got my own battery"). After another 2 minutes or so the siren started to do a continuous alarm tone, much lower then when the alarm goes off but still somewhat annoying. I still waited another couple of minutes and then reconnected the battery. The alarm went immediately off but with a somewhat strange sound. I pressed the button on the key fob and it stopped. All LED's in the car were off. I could now open and close doors without any problem. Turned on ignition, no problem. Started the engine, alarm went off!!

Somehow it seems the system is completely upside down and doesn't give a st about me obviously being the owner (since I have the fob and the immobiliser key).

Has anyone had this before? Shall I drive out into the country side (so I cannot upset my neighbors) and just have the battery disconnected for a much longer time?

Thanks as always in advance for some tipps!

Leo

[JensenA]

The problems you're describing are consistent with the battery in your siren 'dying'. The best person to speak to is Carl Baker, he will be able to diagnose the fault and suggest a solution.
Tell him you live in Germany though, he's a really helpful guy, but he must be getting a bit pissed off with offering free advice to everyone.

[GO LEO]

Thanks for the reply!

Does this mean the siren would need a new battery and then everything would be fine?

Had tried to call Carl already on Friday but without success.
He will get some business from me anyway because both my key fobs are totally knackered and I need replacement fobs from him. Hope to get some advice in parallel on how to fix the alarm problem.

Will no go out of town and let that siren honk for a while with main battery disconnected for ~30mins. Maybe it helps.

Cheers, Leo

[ridds]

Yep battery in siren unit shot. Not sure if you can replace them or if the siren unit has to be replaced.

Also, if you don't have the tag with the alarm code on it then you'll need a new alarm receiver as well as you need this to code the new fobs.

tbh it sounds like you might as well just get Carl to send you the lot!

[GO LEO]

I think I solved the prob today and hopefully forever.

First I taped the interior sensors and after a bit of whining the siren decided not to keep on going off while I was driving to the workshop. In the workshop we just cut all 4 wires of the bloody siren off and took the thing out. It's now behind the workshop in a bucket and the whole lot wrapped in a blanket because it is still making noise.

I then closed the doors with the fob and opened again and the car behaved all normal again. No hazard lights that kept on flashing and car would start normally. I haven't been brave enough to untape the interior sensors again but will do so tomorrow.

It really seems as if the siren (dying battery inside?) has caused the trouble. Doesn't make too much sense to me but after all I am happy to have now found a solution.

Thanks for all your help.

Leo