Ignition Questions

[LXL15]

Hi guys,

I was wondering if anyone can tell me HOW the ignition switches work in AUs (or any falcon for that matter)? What is their internal structure? From the wiring diagrams, it seems to be a four pointed switch, but I'm not sure.

And I know the ignition sends a signal to the computer which then starts the starter motor, but is this actually a special code, or more just the closing of a circuit?

Cheers.

PS I'm not sure if this is the right place for this thread, but seeing as people here know everything, I figured it'd be the best place for it.