The starter relay shorted out  recently, and I replaced the starter with
a rebuilt one. I couldn't get the replacement to energize and start car....
I found it still did not work because there was no starter control power
reaching the the rear terminal on that terminal strip (C105) at the right
wheel well.   The rear terminal goes direct to the starter relay.  I figured
that repeated attempts to start car with shorted starter relay had fried the
tranny starter lockout switch.  So to get the car going, I ran a new wire
all the way from the ignition switch to  the starter control terminal at
C105.  This of course works, but the car can start in drive.
  Well, I finally got underneath and checked the starter lockout contacts
at the tranny with a meter. I have good power going in on violet/ white from
the ignition switch, but no power going out on violet (temporarily removed
my "jumper" of course)....and the car is in PARK. So my hunch was right, the
tranny switch is permanently opened.  Nothing wrong with the connector.  I
might get a couple of more years use out of the car....and  there appears to
be no way to fix the internal switch except by removing and repairing the
tranny, which is out of the question. I usually drive the car, and can
probably remember to always have it in Park...but my wife might need to
drive it someday, and hit something when it lurches forward because she
didn't put it in Park. I am going to have to rig up something, I
guess....maybe a microswitch positioned so that the tranny shifter linkage
opens the switch when not in park?