Pinpoint Tests Purpose
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2019 Ford Expedition, 2018 Lincoln MKZ, 2018 Ford Transit-350 HD, 2018 Ford Transit-350, and 2018 Ford Transit-250. However, it is still accessible from the selected car via links, so may be relevant.
To verify PSCM DTC U3001 is present and investigate if the PSCM wiring is the reason for the momentary loss of voltage. This test verifies the PSCM fuses, PSCM wiring harness power and ground connections are working correctly, as well as the battery and charging system.