Horn wont work?

[pecka]

I have tried all of the stuff in the tech aritcle on the horn problem but found nothing. If I set off my alarm the horn works fine but other wise it will not work at all. Anyone had this problem?

 

[Defiant]

The alarm horn isn't the service horn. The alarm horn is about three times as loud.

You'll just have to chase down the circuit and find out where it stops working.