On my99 uk classic it has the factory fitted sigma m30 which seams to have a mind of its own the alarm arms and imobilises as it should and vice versa but the alarm will go off whenever it feels like even when the car is running also the sounder is extremly quiet .

anyone have any ideas??

Thanks Anthony.

 

Anyone??

 

i replaced my mates sigma m30 because of same problems,when i got the car in bits the alarm brain had been looked and messed about with before.no point trying to fix old stuff new alarm required,its bin food.

 

Sounds like the siren is loosing its power feed and tripping into battery back up mode and batterys sound low

Ian

 

any ideas on how to fix it

 

Check the wiring plug into alarm box

Ian