To find it precisely:
* Consult your owner's manual: This is the best resource. The manual will have diagrams and specifications unique to your specific Durango's year and model.
* Search online forums: Search for "[Your Durango Year] Durango ECM location" on forums dedicated to Dodge vehicles. Owners have often posted pictures and detailed locations.
* Use a wiring diagram: A wiring diagram for your Durango will show the location of the ECM. These can sometimes be found online, but access to professional repair information (like AllData or Mitchell 1) provides the most accurate and complete diagrams.
Do not attempt to locate it without the proper knowledge and tools. Working on your car's computer system requires technical expertise to avoid damage. If you need work done, it's best to consult a qualified mechanic.