several times now while driving the engine light as well as the door ajar light

Hi Tiggerah326, This already sounds like a professional needs to diagnose this. With intermittent check engine lights and electrical issues, the ability to diagnose is diminished quite a bit because the problem can go away while you are chasing it down. Here are some good shops that can help you: http://repairpal.com/toyota-within-10-miles-of-pahoa-hawaii-96778