So I was driving yesterday and my security light came on while I was driving. Thought it was wierd, but the car was running so I didn't think anything of it till this morning. Went out to my car, put the key in and wouldn't start. The security light was on. Tried it again, nothing. So I pulled the PCM bat fuse, put it back in and it started right up. Any ideas? The key is only about 2 yrs old. I wore out the chip on the origonal one. So I don't think it's that.