Component Description: RTM
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The RTM communicates all RKE and passive key information to the BCM over a LIN-based circuit whether or not the CAN is active. The RTM is a receiving antenna that receives the high frequency signals from Integrated Keyhead Transmitters (IKTs) and passive keys.
The RTM requires PMI when replaced.