What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
6Original wording in English
FORD, LINCOLN
Reported code forms P1674
Some 2023-2024 Escape/Corsair, 2024 Nautilus vehicles may exhibit various AWD/4WD/4x4 warning messages displayed in the message center with loss of AWD function for the remainder of the active key cycle. DTCs C0095,…
FORD, LINCOLN
Reported code forms P1674
Some 2023 Bronco/Corsair/F-150/F-Super Duty vehicles may exhibit a DTC P1674 in the GWM after an OTA update. This OTA update is delivered in two downloads. If the GWM is tested between OTAs, this code will be present.…
FORD
Reported code forms P1674
Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P1674 stored in the transmission control module (TCM). This…
FORD
Reported code forms P1674
Some 2021 F-150 vehicles equipped with a 3.5L PowerBoost engine and built on or before 23-Apr-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301-P0306,…
FORD
Reported code forms P1674
Some 2021 F-150 vehicles equipped with a 3.5L PowerBoost engine and built on or before 23-Apr-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301-P0306,…
FORD
Reported code forms P1674
Some 2012-2014 Focus vehicles equipped with a 2.0L gasoline direct injection (GDI) engine may exhibit concerns of engine runs rough, crank no-start, loss of power, loss of engine RPM, and/or illuminated MIL with…
Check vehicle applicability
30A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | BRONCO | 2023 |
| Ford | ESCAPE | 2024 |
| Ford | ESCAPE | 2023 |
| Ford | F-150 | 2023 |
| Ford | F-150 | 2021 |
| Ford | F-250 SD | 2023 |
| Ford | F-250 SD | 2022 |
| Ford | F-250 SD | 2021 |
| Ford | F-250 SD | 2020 |
| Ford | F-350 SD | 2023 |
| Ford | F-350 SD | 2022 |
| Ford | F-350 SD | 2021 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.