Yesterday I was driving without my seat belt on and the seat belt light flickered then went out. This morning I was driving and the door open light flickered on then off but the door was not open. The cabin light also flashed on then off once. When I was driving home from work everything was fine no lights flashed but the seat belt light was still out. The engine light has also been on for about six months but every mechanic I have gone to say the machine is not reading anything. I do not know what is wrong with it or if these two things are related. It is a 2001 Mitsubishi Eclipse spyder gt