s14 dash plug understanding!

Hey guys i have a question. I was wondering about the orange wire on the S14 dash plug, which is the ignition wire it says on the pin-out. I’m curious as to whether this wire is the wire which is triggered by the turn of the key to the start position and gives 12 volts, which would activate the starter. If this wire does not activate the starter which wire should i be looking at?

Thanks
Randy