P1632-TCM Internal - Test Internal Watchdog Performance: Notes
WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module Power Supply Wiring Diagram
Courtesy of CHRYSLER GROUP, LLC
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article