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B1081 on Ford vehicles

B1081 is named on 18 Ford model years (2016–2021): 71 manufacturer filings and 0 owner reports in NHTSA’s files, across F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-150, Ranger.

Body 18 model years 71 manufacturer filings

Which Ford model years name B1081

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2018 Ford F-250 Super DutyEquipment5—
2018 Ford F-350 Super DutyEquipment5—
2017 Ford F-250 Super DutyEquipment5—
2017 Ford F-350 Super DutyEquipment5—
2017 Ford F-450 Super DutyEquipment5—
2020 Ford RangerEquipment Adaptive/Mobility4—
2019 Ford F-250 Super DutyEquipment4—
2019 Ford F-350 Super DutyEquipment4—
2019 Ford F-450 Super DutyEquipment4—
2019 Ford RangerElectrical System4—
2018 Ford F-450 Super DutyEquipment4—
2016 Ford F-150Equipment4—
2021 Ford F-250 Super DutyEquipment3—
2021 Ford F-350 Super DutyEquipment3—
2021 Ford F-450 Super DutyEquipment3—
2020 Ford F-250 Super DutyEquipment3—
2020 Ford F-350 Super DutyEquipment3—
2020 Ford F-450 Super DutyEquipment3—

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Equipment 62 Electrical System 3 Engine 2 Equipment Adaptive/Mobility 1
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Ford filings that name B1081

Source: NHTSA manufacturer communications

Bulletins and campaigns Ford filed with NHTSA whose summary names B1081. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What B1081 means

Source: SAE J2012 / OBD-II

B1081 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. The record above is what Ford and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is B1081 a known problem on Ford vehicles?

It is a documented one: NHTSA's files hold 71 manufacturer filings and 0 owner reports naming B1081 on 18 Ford model years (2016–2021). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.

Which Ford models does B1081 appear on most?

2018 F-250 Super Duty (5 documents), 2017 F-250 Super Duty (5 documents), 2018 F-350 Super Duty (5 documents).

Does B1081 on a Ford mean it is recalled?

No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.