P0056 on Ford Focus III. Causes, how to remove 0 23.03.201801.04.2023 English, Focus, Ford, Електроніка, коди помилок code, error, Focus, Ford, oxygen, p0056, repair, reset, sensor Regardless of engine size on Ford Focus 3 cars, error P0056 can occur at mileage over 100-120,000 km. Let's find out together what the error code means, whether you can drive, how to reset it, and what to change. Read more