square or sine for olds

Hello...

Well, it looks like it might fly.  I've buttoned up the wiring on a GlobalCruise install on a 1990 Olds Cutlass Ciera, setting little switches with my probe and trying to convince myself that my slight color-blindness wasn't really that big of a problem.

I'm on switch number 11 and I don't know what I need here. 

Could someone toss something informative over the plate, maybe with a little expose on what sine or square indicates.  I feel like I've been learning something here, but it could be just a Fluke.   

Best, Brandt  

Thanks sv...

I've had fun here.  The admonitions to disconnect the battery must be weighed against the need to determine the "hot" wire.  The ignition harness is something that seems obvious to those who describe it, but is one of many bundles coming from that general neighborhood.  It's almost like voodoo.  The wrong leaf from the wrong bush...  

The switches are set (uh, by the by, isn't the MicroCruise laid out in the12volt a little dated?  Where are switches eleven and twelve?) and I look forward to spinning the diagnostic wheel tomorrow.

Best, Brandt