Asking for a friend so forgive my lack of knowledge:

Does anyone know how to activate the air suspension on the expys that is activated when 4x4 low is activated. We want to hook it up to a switch???

thx

 

I know where the switch is on mine but it isn't a 4x4. Look right below the ecu and there should be a toggle switch and that the one for the air suspension.

 

Not a good idea to activate with a switch. If you are trying to lift it so to speak your alignment will be out. There is three height settings. Rest, driving, and four wheel low which is the highest. \\

Try driving with the suspension turned off. some people do it but to me it does not feel safe(forgot to turn it back on after Discount Tire did some work).

 

Are you simply trying to lift the truck ? or are you trying to gain control via the cab of the truck?