Re: 03 EB Expedition Door Ajar Message
I had the same problem with my 03 navigator. It would annoy the hell out of me when i drove it because it will beep everytime it thinks the door is open, and when it goes off when i park it, the alarm goes off! Luckily for me, my navigator has the steps that slides out when the door is open. I just listen or look which side the step comes out and i got which side, and then i do some testing with a wire diagram. I dont think expeditions have the step that slides out, i think they are stationary.
I have noticed on Ford and Lincoln that the door ajar usually goes out for the front doors and the lock actuator goes out on the rear doors.