Buzzer noise

Any way to slience buzzer short of disconnecting wiring harness? It buzzes constantly even though everything seems to be ok.

You have a sensor that failed. They fail on. Replacing the failed sensor will resolve it.

Air pressure, or park brake.

There's not a simple way to disable just the buzzer. Putting tape over it is as close as you can get. Then there's the issue of if there was ever an accident they'd scream bloody murder that you 'disabled a critical safety system'.

Thanks, I really appreciate the advice and will check those sensors.

The sensors really do need checking asap. (As) failing on is as bad as failing off, either way you would not know the status of you air system.

I just ordered the sensors and will replace them, Thanks, Ozzie