This happened to me yesterday-and by searching the internet I found out how to fix it!!! My problem was the key in my 1996 Toyota corolla wouldn't turn-instant panic! What I had to do is first, I called a used auto parts yard and got the ingition cylinder for the car, I only wanted the cylinder, but the only way I could buy it was the whole unit, so I did, cost me 60 bucks. Next, I removed the lower plastic panel, under the steering wheel, total time-5-10 minutes. Then, I took my electric drill(don't use a cordless-no way near enough speed) and drilled out the little silvery metal pin, which is located just underneath the cylinder. The way I found this was looking at the used unit I bought, and by turning the key to ass., a little pin popped out under the cylinder. When this pin pops out, by pushing the pin in , you can pull out the actual ignition lock cylinder, which is the part you want! By looking at the pin, I was able to locate the pin on the malfunctioning unit in the car. I used a carbide bit a little smaller than the hole, and about 10-15 minutes later I was able to drill out the little pin and pull out the key lock cylinder. Once this was done, it was just a matter of sliding in the "new" cylinder in place of the old one. And I have to admit I am definitely not a mechanic, but in this economy, we have to find every way the average person can to save money! I figure the repair cost me about 140 bucks, 60 for the part and 80 to get the car towed to my house. If I had done the fix where the car broke down it would of been just the $60, but I didn't want to risk running into a problem out in the middle of nowhere, if you know what I mean! So there you go, a real life fix of a broken key cylinder, 1996 Toyota Corolla, and forget the other remedy on the net, the "paper clip" fix, does not work for this car!