I've looked at that diagram a hundred times already, and I checked the TDR.
But it has a yellow, brown, purple, and black/yellow wire.
C1 is the solid yellow wire that didn't have 12V going to it with the transmission in the park position, and key in start.
C2 is the yellow and black wire, and that has no voltage going to it since It's the ground wire

 

C1 yellow wire come directly from the ignition switch, through the splice and the connector shown in the diagram. Start checking the voltage on the yellow wire closer to the ignition switch.

 

Alright, I'll tear the dash out on Monday and check on where it splices off in the harness and see where it's losing voltage

 

I would probe the yellow wire near the steering column first, by using a straight pin on the meter lead.

 

Do you still hear a click under the dash when you try to start? If so, can you confirm that the click is coming from the TDR?

 

You indicate you looked at the diagram "a hundred times already", but then you indicate "C2 is the yellow and black wire, and that has no voltage going to it since It's the ground wire". Go back and look for and 101st time. A1 is the tellow black ground from the TDM. C2 is the yellow wire that feeds through the neutral safety switch.

I'll never understand why this is so difficult.

 

Because the problem is I see 4 wires going to it.
I can see that from the ignition there's a yellow wire going to the TDR and when it's working properly it'll close the circuit on the purple wire.
Then that yellow wire from the fuse block is going to the NSS to the TDR to close the circuit.
This is what I'm looking at:
C1: Yellow - No voltage with the car in park and ignition in start position
C2: Brown - From the NSS
A1: Yellow/Black - Ground
A2: Purple - To the solenoid

It's not difficult to understand, my problem is I do not see a second yellow wire. Only thing I can think of for that yellow wire is from the fuseblock to the
NSS and seeing if that has any power. Other than that I know it splits off from the wiring harness in two different spots

 

You re correct - my mistake, the wire from the NSS is brown... but it goes to C2.

You stated that the yellow/black wire goes to C2, it's a ground, and hence would have no voltage. The point I'm trying to make here is that the yellow/black wire goes to A1 (which you apparently have now discovered), and no one told you to check the voltage on A1. We told you you need 12V on C1 with the key in "start" position, and 12V on C2 with the key in the "start" position, and the shifter in the correct position.

 

Neither the brown nor the yellow wire have voltage going to them with the key in start and transmission in park

 

Then you need to chase back toward the ignition switch. Maybe you didn't get the column plugged in well at the C200 connector (or you have a bad switch).

 

I'll tear the dash out tomorrow and trace the wires back.
Worse case scenario is I do the 98 dash swap a little sooner than planned