Theory Of Operation
WARNING: This page is about a different car, the 2015 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of the diagnostic is to detect an incorrect vehicle configuration stored in the Transmission Control Module (TCM). This diagnostic compares the vehicle configuration codes stored in the TCM to the vehicle configuration codes received via Controller Area Network (CAN) from the Body Control Module (BCM).