wiper switch

Im trying to remember.

I THINK on my duster ( not sure if they are similar set ups).....there may have been a little alan head screw on the side of the knob which allows the knob to come off once loosened.

THEN I THINK there is a metal washer that is threaded that has notchs in it.

you just take a flat head screw driver and insert it into one of the notchs and use leverage on the screw driver to turn the washer counter clockwise and once the washer is unthreaded the wiper switch should come out the back.

or am I thinking of the headlight switch? heck I don't know.

let me know if I was right or wrong....to tired to think right now lol