Bought a van recently fitted with sigma s30 alarm with keypad on the dashboard and a fob (changed batteries yesterday) that doesn't work. Anytime i pressed the button nothing happen except when i manually open the door with the keys then the siren start blasting hot air. I do not have the pin code so also is the preview owner. Now the alarm has immobilized my van but i will like to rip out this alarm but i need to get the van started first and also stop the siren as it is becoming a nuisance to the neighbors. I read some manual which doesn't make any sense at all.

Please peeps any advise!

 

got it sorted now as i luckily ran into this RAC dude. All he did was to undo a plug and presto no more terrible alarm.

Thankx to da guy who pm'ed me.