alarm!!!!!!

[andysri]

the cav has the standard built-in alarm immobiliser dead-lock system and just recently the alarm keeps going off for what appears to be no reason. i suspected voltage drop in the battery so i put a good spare on and is was fine for 4 days and now its started going off again.

has anyone got anyother ideas on what could be causing it? also it only normally goes off shortly after the car has been used

[Squig]

I've had the factory immobiliser thrown up fault codes with a low/dead battery, it could be something draining the battery and hence causing alarm issues? Have you checked the battery levels on either battery?

[Gaz]

could be the interior sensors, try putting some tape over them see if it solves it.

[andysri]

I've had the factory immobiliser thrown up fault codes with a low/dead battery, it could be something draining the battery and hence causing alarm issues? Have you checked the battery levels on either battery?

i did wonder if there was something draining it but if it is it can only be a very small amount. the battery i had on it seemed to be playing up, the voltage level rose and fell really really slowly which i guessed the alarm would sence when the car gets locked up after use and so i changed it for another. i will check the level in the morning and see how it looks which may give me a clue.

could be the interior sensors, try putting some tape over them see if it solves it.

i think i turned them off as they kept setting it off about this time last year but i cant remember if i turned them back on and i cant remember how you switch them on/off. however i will tape them over to eliminate them and see what happens.

cheers muchly