Passenger turn signals inoperative

[ByrdDog]

Both passenger side turn signals, as well as indicator not working. Checked bulbs & grounds & everything is good. Passenger side brake light doesn't work either. To me, this seems like a problem with the switch itself. Anything anyone else can think of to check before I tear into the steering column?

 

[ByrdDog]

Update - tested the wires at the turn signal connector under the column & get a flash in my test light on both turn signal wires, and the right front signal started working, but the rear & indicator are still dead. Anyone.......? Can someone post a wiring diagram for the brake/turn circuits? I wasn't able to isolate the perinate info in the wiring diagrams in the stickys.