Some 2018-2019 Explorer and 2018-2024 Transit/F-150/Expedition/Navigator vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0627, P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). Diagnosis should include checking for an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged pins/terminals, or loose/corroded grounds. Confirm FPCM connector (Explorer - C3239, Transit - C433, F-150 - C460/C4336, Expedition/Navigator - C433/C4033) is fully seated and inspect applicable grounds (Explorer G302, Transit - G401, F-150 - G401, Expedition/Navigator - G403/G406) prior to performing guided diagnostics or replacing any components.
