Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2022 Lincoln Navigator, 2022 Lincoln Nautilus, 2022 Lincoln Corsair, 2022 Lincoln Aviator, and 2022 Ford Transit-350 HD. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0447:00 indicates a concern with the messages sent from the GWM. The module reporting this DTC is not the problem module. Do not install a new PSCM as part of the repair for PSCM DTC U0447:00.