WARNING: This page is about a different car, the 2011 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Powertrain Control Module (PCM)
Courtesy of CHRYSLER LLC
The Powertrain Control Module (PCM) (1) is located in the engine compartment on the front of the Total Integrated Power Module (TIPM).