I have a '94 Honda Accord. I read some of the q&a's here, and saw the I and II key settings mentioned but not III.

After driving around today, I came home for a few minutes, then went outside and tried to start the car. I turned the key to III, it turned over, and then let the key go and... the engine stops immediately. Tried a couple times. No weird sounds, everything seems normal and then surprise, the car's not on.

I come in here, find this site, read a bit, go out and open the doors and hood to let it cool off. After a while I go back out and try again, same thing. Start to come inside, realize I forgot to notice the check engine light before posting my question, go back to the car and boom, it starts. <sigh> The check engine light did flash briefly, by the way.

So in a minute I get to go try again and see if my car will work. Does this sound like the main relay getting too hot?

Also, don't know if it's related somehow, my antenna won't go down anymore either. I hear the noise of whatever is supposed to make it go up or down, but it doesn't move.

I didn't gather whether your engine was starting - I am assuming it is and then stops when you release the key. It might be your ignition switch. See if you can hold the key forward a little in the II position once the engine starts. When you let go, if the engine dies (along with tachometer/lights) then you probably need the electrical portion of your ignition switch replaced.

That was exactly it. They replaced the ignition switch... and now I find the power lock switches on the inside will lock the doors, but not unlock them!

And when I put the key in the passenger side door it won't unlock them, when I turn it the passenger side door lock goes up mechanically but when I let go it goes back down; none of the other locks respond, and normally they would all unlock.

It wasn't like that before. Any idea what happened?