July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Module, Powertrain Control [EAF]: Description: Description
WARNING: This page is about a different car, the 2013 Fiat 500c and 2013 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: PCM, Retainers, Ground Strap & Nuts
Courtesy of CHRYSLER GROUP, LLC
The Powertrain Control Module (PCM) (2) is located in the engine compartment on the back of the battery tray.