please help! e39 alarm siren not working
my alarm siren is not working .. a while ago my main key wasnt unlocking and locking the doors so i switch to another spare key and re programed that key beacause it was a while ago i dont remember if that was the reason for my siren not working i dont know if i mixed up something and caused the alarm to be silent .. ive looked around for different answers but i cant find them anywhere .. help will be greatly appriciated thank you!!
i dont know if the key progming is the reason or,
the hood senser and me being to lazy to replace it killed the siren after constantly going off or,
the siren deactivated itself beacause of constant false alarms ....
thank you for your time