Does anyone know the color codes for the tail light wires for a 1991 Volvo 240 wagon? I am replacing the right side tail light assembly, but I can't seem to get the brake light working quite right. There are 2 wires to the brake, and I presume one is yellow. Honestly, I can't find the diagram I made when I took the old one off, and I'm just guessing at this point. Any help would be very appreciated, thanks.

I have tried following a basic wiring diagram from the Haynes manual, but its difficult to match some of the color codes. So far, I have the brown/white to the tail light pole (working), the black wire which relays from the left assembly to the backup light (working), the blue to the turn signal (working), and the purple/white and yellow to the brake poles (not working)

I also have the ground attached to the frame