Nag1 ESM
WARNING: This page is about a different car, the 2015 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
The NAG1 Electronic Shift Module (ESM) on the NAG1 is part of the shifter assembly called the Shift Lever Assembly (SLA). For more information on the SLA This is a shift by cable shifter. Refer to the appropriate Transmission Service Information article.