Having trouble with blinkers

[URHONOR]

So I have been through the wiring schematics about 10 times now and I am still stumped on this. So all the marker lights work when the headlight knob is half way out, and all lights work when knob is all the way out. The right turn signal (both front and back) work when engaged, and right brake light work when pedal is depressed, but my left one doesnt at all. Check bulbs and grounds and still nothing. The left light just doesnt blink (both front and rear). Any ideas? I have also changed the blinker relay too.

[fordman]

the turn signal switch probably isnt working properly. since the brake light and blinker are the same element in the bulb. it would correlate that it would be in the switch where the two functions come together at.