Technical Service Bulletin SSM 50052 — 2021 FORD F-550 SD

Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with only diagnostic trouble code (DTC) P0315 stored in the powertrain control module (PCM). If no drivability concerns are present, clear the DTC and retest. If the DTC returns, perform normal diagnostics per the Powertrain Control/Emissions Diagnosis (PC/ED) Manual. If the DTC does not return, inform the customer that Ford is developing a PCM software fix that is expected in late August/early September, 2021. Advise the customer that vehicle durability is not affected by the condition and they can continue to drive the vehicle. Schedule a follow up appointment for repair in late August/early September, 2021. Monitor OASIS for updates.