You never mentioned the problem that you are having. Are you having a problem of the starter not working and suspect a bad neutral safety switch (transaxle range sensor)? If so, why not just jump the wires at it first before replacing it to find out if you are correct.
Here is that wiring diagram, it is the yellow wire going in and the yellow/black wire coming out. That earlier diagram of the location I am afraid to say was for a Buick, sorry about that confusion. Here is a look at the correct location.
Images (Click to enlarge)
Monday, February 26th, 2018 AT 5:24 PM