Air warning buzzer won't stop in M932a1

[kennys@wi.rr.com]

I thought the buzzer was all part of the module? If not where is that bugger located? I just want to get it home so I can propperly diagnose the problem.

 

[rrrr]

Just unscrew the electrical connection on top of the unit its all on module. Be aware that you will have no warning for low air or if your parking brake is on.

On an all air brake truck be very carefull.

 

[jw4x4]

Is the buzzer supposed to be on anytime the parking brake is applied???? Mine buzzes until the parking brake is released.

 

[doghead]

MECHANICAL PARKING BRAKE CONTROL LEVER is pulled up to engage
parking brakes and down to disengage brakes. Knob on top of handle is turned
clockwise to increase parking brake tension and counterclockwise to decrease
parking brake tension. When parking brake lever is applied, it also trips a valve​

to release air pressure from spring brakes. This engages spring brakes.

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I'm guessing that is correct JW.​

 

[nf6x]

The buzzer sounds for either low air or the parking brake being engaged. Two warning lamps above the steering wheel tel you which condition(s) the buzzer is calling your attention to. It is normal for the buzzer to sound until you have minimum air pressure and release the parking brake.