Theory Of Operation
WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition is in the accessory or on position, the Totally Integrated Power Module (TIPM) energizes the Run/Accessory Relay. The TIPM internally grounds the coil for the Run/Accessory Relay.