DTC Trigger
WARNING: This page is about a different car, the 2020 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
This DTC sets after the PSCM experiences a momentary loss of vehicle voltage. Prior to shutting down, the PSCM stores data in memory, when the ignition is set to ON, the PSCM reads this data and if it is missing or corrupted, this DTC sets. Therefore, the presence of DTC U3001 means the loss of vehicle voltage occurred prior to the DTC being set. Consult the DTC Index for additional information if needed.
This DTC also sets if any of the charging system (i.e., battery, alternator, etc.) components, fuses, wiring or connections between the charging system and the PSCM are corroded, loose, damaged or disconnected.