MX5 MK3 Alarm

Anybody know how to activate MK3 factory alarm?
I think it has gone into servive / valet mode, when you hit the central locking button the indicator lights dont flash so alarm is not activated?
Any ideas?
Thanks, C
I think it has gone into servive / valet mode, when you hit the central locking button the indicator lights dont flash so alarm is not activated?
Any ideas?
Thanks, C