Pinout Model S Headlight?

[Drizzaddy]

I have a 2013 Model S and have a headlight out. I changed the bulb, the ballast, and finally broke down and bought a new assembly. No luck from any of the changes. Wondering if there’s any insight those on this thread could provide for a next most likely point of failure? Haven’t yet delved into wiring diagrams and schematics, hoping there’s more macro engineering that can be done before then.