Brake and blinkers not working 70 dart

RedFish said
That's not correct. rear left and right lamp wires are a green and a yellow on dang near every vehicle of the era including trailers. The brown wire is park lamps.

Hmm, I've never actually tried the test procedure outlined by Mopar Action in the article. But the color codes at the connector seem to match my wiring diagram. Where did they go wrong?