This is from page 5 of the CL section in the 2003 350Z FSM.
http://www.nicoclub.com/FSM/
The one on my 240Sx got to the point that you are at now on your Z. In the end I went ahead and got rid of it (wired it closed) but I'd recommend not doing that if you can avoid it...it's there for a reason and you only need to make the mistake of starting it in gear once to realize why it's there.