Lift Axle Valve Question...

[Waterloo]

Was out in the truck yesterday buttoning her up, hit the lift axle switch and nothing. Checked the fuses, etc., and left it at that. I figure it is the switch on the valve that failed, but did not get any farther than that. I know what the unit looks like, just wondering is there a common place that these valves are located in the truck so I don't spend all day looking for it.

Here is the valve... https://www.dsuban.com/product/19516-711...lve-p2485/