Welcome aboard!!
I had similar electrical issues with my '02 XLT. The dome lights would stay on until the battery saver feature turned them off, the accessory delay wasn't working, the driver side puddle light didn't work, the keypad on the door would set off the alarm when I pressed it, the door ajar light would flash and beep at highway speeds, the radio would shut off as soon as I turned the key off, the alarm would beep twice when I armed it. Recently all 4 windows stopped working. Most recently the driver door lock actuator stopped working.
A lot of electrical issues can be traced back to broken/damaged wire(s) in the boot between the body and the driver's door. I found 3 broken wires and repaired them. The thin black ground wire was broken and after repairing it all was back to normal. When the windows stopped working, I repaired the thick black ground wire and the windows now work like a champ. I had to repair the pink/black wire to fix the driver door lock actuator.
Here is the thread for removing the door panel:
http://www.explorerforum.com/forums//showthread.php?t=303524
Here is a great thread for checking for broken/damaged wires, thanks to
synyster for this awesome write-up:
http://www.explorerforum.com/forums//showthread.php?t=270081
Be sure to take your time when looking for broken/damaged wire(s). Check all the wires for breaks/damage. When you think you're done looking, look again, and again, and again. A bright flashlight can be very helpful.
I would check this out and then tackle the other issues.
Let me know if you need anything else. :biggthump
Please keep us posted as feedback helps others reading this post looking for a fix to the same or similar issue! 
Hello, new to site and hoping to get some info on elect. problems on my 02 explorer. It runs fine, but interior lites wont come on, wipers only work on highest setting, rear wiper does not work at all, neithe washer motors work, radio displays info but wont play anything, all door windows wont work, but the sun roof window opens fine, door locks will randomly go up and down, key alarms, door open chimes dont work, parking lites come on as soon as you turn the key and stay on all the time, will shift good sometimes, than lags or is rough at other times. Where do i start? No one has answeres around here without 100 bucks an hour to look at. Any chance anyone has had this problem, or can offer a home fix, or does it just need to sit in a shop. Any help is greatly apreciated, and thank you in advance. C. Williams, omaha ne.
