The 2002 Taurus uses many electronic control modules (ECMs), each with a specific function. To find the location of a particular module, you'll need to specify *which* module you're looking for (e.g., Powertrain Control Module (PCM), Body Control Module (BCM), etc.). Then, you can consult a repair manual specific to your Taurus's year and engine type to find its location. These manuals often have diagrams showing the location of all the modules.