Air buzzer not working

I don't have enough experience with the Pro Star to know where the switches are, but you're legal as long as one works. You aren't required to have both

 

Not all trucks have both a audio AND visual. Mine only had a warning light. You only need one to pass so I wouldn't worry too much about it.

 

@Heavyd

 

The beeper is part of the cluster and replaceable.

 

I had a T2000 that had the buzzer in the cluster that went out.

I bought a cheap 12 v buzzer and wired it to the air pressure sensors that feed the signal to the cluster.

I was under the impression that both have to work, that said, mine is currently disconnected -

Anyone have a link to the regulation?

 

Section c #2
Federal Register :: Request Access

 

Aah - cool thanks. That ends that subset of lunch counter misinformation.