Wireless Accessory Charging Module (WACM) - Overview
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 BCM provides a protected switch to protected battery input to the WACM when an interior passive key search is in progress to disable the wireless charging feature. This prevents possible interference with the passive key when placed in close proximity to the WACM during a charge session of a secondary device. A redundant CAN signal is also sent by the BCM in addition to the protected switch to protected battery input.