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2003 Explorer Electrical Issues
So I have a new development in my 2003 Explorer that has me confused. About a week ago I noticed that the door ajar light would remain illuminated and that they radio would continue to play even with the key out of the switch and the door open. Additional the chime that warns you that your headlights are on with the key out no longer chimes meaning that I can walk away with the headlights on and run the battery down. For about two days it also had the curious habit of unlocking itself after I had locked the doors with the button on the door but it would not unlock itself if I used the key in the actual lock mechanism from the outside. That problem disappeared but now the interior light won't come on when you open the door though it will come on manually. As some of these problems seem to be indicative of the car not "knowing" that the door is open (radio playing headlight chime) and some that the door is not closed (the door ajar indicator) and some are just weird (the door unlocking itself), I am wondering if there is some many of ECU that might be the point of intersection for all of these issues or if I am overthinking it entirely.
Any thoughts would be appreciated.