To locate a specific module, you'll need:
* A wiring diagram: This is the most reliable source. A wiring diagram for your specific year and model Explorer will show the location of each module. You can often find these online through automotive repair resources or by purchasing a repair manual (like a Haynes or Chilton manual).
* A repair manual: These manuals usually have detailed diagrams and descriptions of component locations.
* The module's part number: If you know the part number of the module, you can use online resources or a parts catalog to find its location.
Without knowing which module you're looking for, I cannot give you a specific location. Many are under the dash, in the engine compartment (often near the firewall), or under the rear seat.