Electrical Problem

My windshield wipers go on when I use my left turn signal and my headlights. In addition, they will also go on when I turn on my A/C. I removed the wiper fuse which partially solved the problem but now my left headlight does not work. I replaced the headlight but it is still not working. Can anyone help?

Sounds like it could be a bad ground connection. These things can be very hard to find. Best to start at the battery and check all connections that you can find, clean and tighten.
Jeff

Do you think it could be the Combination Switch?

I once had my Timing Belt, Water Pump, etc. replaced and the problem was temporarily fixed but it returned after about 3 months.

That would lead me to a bad connection as they may have had to disconnect something to do that work. Start with the Batt and then look at what might have been disconnected with the work done.

Bad ground somewhere - I don't envy you, these things can a royal PITA to find and fix