WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Powertrain Control Module C1 - Black/Black 38 Way Connector
Courtesy of DAIMLERCHRYSLER CORP.
Fig 2: Identifying Powertrain Control Module C2 - Black/Orange 38 Way Connector
Courtesy of DAIMLERCHRYSLER CORP.
Fig 3: Identifying Powertrain Control Module C3 - Black/White 38 Way Connector
Courtesy of DAIMLERCHRYSLER CORP.
Fig 4: Identifying Powertrain Control Module C4 - Black/Green 38 Way Connector