Left side brake woes

RedFish said
Brake lamp power goes into turn signal switch on a white wire. Hold the brake pedal down and probe about with a test lamp. With signal switch centered you'll find the brake lamp current coming out on 2 wires , a green and a yellow. These are the rear lamp bright element wires. Work the signal switch to see each wire go off/ loose brake lamp current.
The signal switch moved left or right changes the power supplied on these wires from brake circuit to turn circuit. So now turn ignition switch on a check turn current out on same 2 wires.

Thanks for your input I will try this on my next go at it.

According to my diagram there are two white wires at my TS connector harness (which there are) and one goes to the flasher switch and the other to the brake light switch. A diagram of the flasher switch would also be helpful. Wiring diagrams are great but it kinda falls apart when you dont know how the switches are supposed to work.