2nd air gauge not working

[Waterloo]

(03-27-2016 )Rawze Wrote:  Paccar cab controllers are sometimes very finicky. if there was an intermittent connection, the cab controller could be rejecting the gauge all together.

The best way to reset the cab controller unfortunately, is to disconnect ALL batteries form the truck completely, and let it sit for 30 min or so, then re-connect everything. No one fuse will typically do it. i would try that just ensure that is not what happened. It is very common.

Steve, try this battery disconnect. I know you have a KW, but I was reading this, and see that your gauge drops and you get no warning buzzer. I have had the no buzzer problem with my air gauges too on my ProStar. They will drop and no buzzer. I have to disconnect the batteries, all of them, let it sit for a few minutes and reattach. Everything than goes back to normal and works. I have had to do this once every year for some reason, no clue why the body/cab controller bugs out like this. But, it is always in the winter months, that I know for a fact, as this happened to me a couple of months ago at a customer. I guess she does not like the cold.