1. Check the Obvious:
* All Doors and Hatch: Carefully check *every* door and the rear hatch (if applicable). Sometimes a door might seem closed but isn't fully latched. Try gently closing each one firmly.
* Hood: Believe it or not, some vehicles link the hood latch to the door ajar system. Make sure the hood is completely closed and latched.
2. Inspect the Door Switches:
* Location: The door switches are usually located within the door jamb itself, near where the door strikes the door frame when closed. They're small, usually rectangular, and often easily accessible once the door trim is slightly loosened (might require some removal).
* Visual Inspection: Look for any obvious signs of damage, cracks, or loose wiring on the switches.
* Test the Switches (Advanced): If you have a multimeter, you can test the switches. With the door closed, the switch should show continuity (a closed circuit). When the door is open, there should be no continuity (an open circuit). This requires some electrical knowledge.
3. Check the Wiring:
* Door Jamb Harness: The wiring harness running between the door and the vehicle body is prone to wear and tear from the constant flexing as the door opens and closes. Inspect this harness carefully for any broken wires, damaged insulation, or corrosion. Pay particular attention to the area where the wiring enters the door.
* Body Control Module (BCM): The BCM is the brain of the vehicle's electrical system. Faulty wiring or connection from the door switches to the BCM could trigger this issue. However, BCM issues are more involved to diagnose and fix.
4. Consider the Grounding:
* Poor Ground: A faulty ground connection can cause all sorts of electrical gremlins. Check the ground points near the affected doors for corrosion or loose connections.
5. Clean Contacts:
* If you find any corrosion or dirt on the switch contacts, carefully clean them with a contact cleaner or even a pencil eraser (be gentle).
6. Replace the Door Switch (Most Likely Culprit):
* If visual inspection reveals a damaged switch or testing confirms a malfunctioning switch, replacing it is often the most effective solution. These switches are relatively inexpensive and available from auto parts stores. You'll find diagrams showing their location in your repair manual or online.
7. Consult a Mechanic:
If you're uncomfortable working with car electronics or after trying all the above steps, take your Explorer to a qualified mechanic. They have the tools and expertise to diagnose more complex electrical issues.
Important Note: Before attempting any electrical work, disconnect the negative battery terminal to prevent accidental short circuits. Always refer to a repair manual specific to your 2005 Ford Explorer Eddie Bauer for detailed wiring diagrams and procedures. Improper electrical repairs can cause further damage.
