2021-2022 various Ford and Lincoln vehicles may exhibit an erroneous diagnostic trouble code (DTC)...
Ford technical service bulletin SSM 50473 for 2021-2022 Ford F-150, 2021-2022 Ford Edge and 2022 Ford F-250 SD and others.
- Bulletin number
- SSM 50473
- Component
- Unknown or other
- Summary
- 2021-2022 various Ford and Lincoln vehicles may exhibit an erroneous diagnostic trouble code (DTC) U1A01:93 stored in the telematics control unit (TCU). This may be due to various software parameters within the TCU. If this DTC is identified during normal diagnostics, but the vehicle does not exhibit any customer concerns around the TCU operation, clear this DTC and no further repairs are recommended. If the DTC returns after being cleared or if the vehicle exhibits connectivity concerns with the TCU, continue with normal Workshop Manual (WSM) diagnostics. If set erroneously, this DTC does not cause any observable concerns or warning messages and does not affect vehicle performance or durability. Ford is developing a software update which will be delivered to the vehicle via an over-the-air (OTA) TCU update in July 2022 to prevent this DTC from setting erroneously.
Vehicles covered
- Ford F-150 2021-2022 20212022
- Ford Edge 2021-2022 20212022
- Ford F-250 SD 2022 2022
- Ford F-350 SD 2022 2022
- Ford Bronco 2021 2021
- Lincoln MKX 2007 2007
- Ford Transit 2022 2022
- Ford Mustang Mach E 2021-2022 20212022
- Ford F-550 SD 2022 2022
- Ford F-450 SD 2022 2022
- Lincoln Nautilus 2021-2022 20212022
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