See the ballast resistor?
Follow J2A back the splice.
The follow wire J2 dark blue with trace to the connector. View attachment 1715853069
Looks like N
Its going to be a corner position on the same side as the bump.
Drawing orientation doesn't always match the way we are looking at it. View attachment 1715853070
The little bumpouts are the clues.
On that connector the fusible link (A1B) is another good reference. Its the opposite corner J
Ok so before when I was checking voltage at the ballast with that rigging above, the test light only lit up in the specific spot in crank. NOW, after only unplugging the connector before the switch and plugging it back in, the ballast has power.
Specifically, 5.8v (and 5.2v at the coil) on the side with the brown and the blue on it. and 10.78v on the side with only the blue wire. and the test light lights up at both sides of the bulkhead and there is power going into the switch.
WHAT.