X-type 2005 alarm keeps going off/i have to disconnect the battery to stop it /reconnect the battery /i start the car when i stop it goes off again after a short while.
Any idea of ?.the cause

 

https://www.jaguarforums.com/forum/x...problem-92167/

Post in another forum =

Hi

Its usually the back up sounder thats causes the alarm to go off

There nicad batteries inside that fail, cause voltage problems and setting the alarm off

You can replace the sounder but it needs programing

if you handy, I've split them before and replaced the battery inside for a new one, then resealed the case with polyurathane adhesive and cured the problem

Your fix above also works well, if you know someone one with jaguar IDS/SDD software they can plug in and also reprogram a new sounder or disable the sounder as well

cheers

Joe