I know it's been years, but THANK YOU for this writeup!
My 2000 started making an occasional hideous buzzing noise from the dashboard when I used my right turn signal, and of course the signal wouldn't flash. In the beginning I would just make sure to press the stalk a little harder to make it engage. After a few months, it got to the point where it happened half the time, and sometimes the signal would only work if I held the stalk in the up position the whole time.
I followed the instructions and found exactly what was pictured.
My only note is that getting the switch assembly back together is a little challenging. There are a number of floating pieces that have to be properly aligned when you snap the housing back together, and it took me a few tries to make it happen.
One, the white switch trolley has to be centered, or it won't engage the little plastic pin attached to the turn signal stalk. If it's out of place, the stalk will only engage when you press it in one direction, and in the other direction it will just spring back.
The second thing is the little white toggle thing in the bottom of the housing (attached to the two springs) that causes the signal to auto-cancel. The first two times I put it back together, that piece moved about 1/8" in its slot, so the pivots weren't in their respective recesses. When I got the assembly back together, this little piece stuck out just a bit, and I could freely flick it with my finger (it was held in place by springs, but wasn't attached to anything else). After you get the assembly back together, you can check this pin by moving the stalk to the L and R turn signal position, and seeing if this little white tab moves with it.
Pay attention to where everything is when it comes apart, and take care that these things are aligned. A dab of dielectric grease on the pivots helped keep them in place during reassembly.
Many thanks to OP!