These are instruction on how to clean the multi-function switch / control rod for the Gen II when the intermittent setting for the wiper blades isn’t working right.
1) Pop off the very outer cap of the control rod with a knife.
2) Remove the screw and the spring
3) Take out the white part. See the 4 metal contacts? That what you need to clean.
4) Using rubbing alcohol and q-tips clean those 4 contacts and the inner metal contact. You can also clean the grease off the other components, its really up to you.
5) Replace the white piece and the spring. Make sure the 2 copper pill-shaped aligners connected by a spring is centered.
6) Place the serrated black section back on the control rod aligning and cut out to the keyed section of the white piece and then rotating to the off position.
7) Press in. Then replace the screw and cap.
1) Pop off the very outer cap of the control rod with a knife.

2) Remove the screw and the spring
3) Take out the white part. See the 4 metal contacts? That what you need to clean.
4) Using rubbing alcohol and q-tips clean those 4 contacts and the inner metal contact. You can also clean the grease off the other components, its really up to you.

5) Replace the white piece and the spring. Make sure the 2 copper pill-shaped aligners connected by a spring is centered.
6) Place the serrated black section back on the control rod aligning and cut out to the keyed section of the white piece and then rotating to the off position.
7) Press in. Then replace the screw and cap.