Module, Trailer Tow (TTM): Description
WARNING: This page is about a different car, the 2022 RAM ProMaster 3500, 2022 RAM ProMaster 2500, and 2022 RAM ProMaster 1500. However, it is still accessible from the selected car via links, so may be relevant.
The Trailer Tow Module (TTM) (1) is located midway up the left D-pillar, behind the trim panel.
The TTM controls and monitors the lighting for the trailers that are properly connected to the vehicle. The TTM on this vehicle controls the lights of a trailer only. It does not control the trailer brakes.