P1633-TCM Internal - Test External Watchdog Performance: Notes
WARNING: This page is about a different car, the 2012 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module Circuit Wiring Diagram
Courtesy of CHRYSLER GROUP, LLC
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article
.