P0451 on Ford vehicles
P0451 is named on 15 Ford model years (2018–2024): 22 manufacturer filings and 0 owner reports in NHTSA’s files, across Explorer, Edge, Bronco Sport, EcoSport, Transit Connect.
Which Ford model years name P0451
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 Ford Explorer | Electrical System | 4 | — |
| 2021 Ford Explorer | Electrical System | 4 | — |
| 2024 Ford Edge | Fuel/Propulsion System | 2 | — |
| 2022 Ford Bronco Sport | Engine | 1 | — |
| 2022 Ford Edge | Engine | 1 | — |
| 2022 Ford Transit Connect | Engine | 1 | — |
| 2021 Ford Bronco Sport | Engine | 1 | — |
| 2021 Ford EcoSport | Engine | 1 | — |
| 2021 Ford Edge | Engine | 1 | — |
| 2021 Ford Transit Connect | Engine | 1 | — |
| 2020 Ford EcoSport | Engine | 1 | — |
| 2020 Ford Transit Connect | Engine | 1 | — |
| 2019 Ford EcoSport | Engine | 1 | — |
| 2019 Ford Transit Connect | Engine | 1 | — |
| 2018 Ford EcoSport | Engine | 1 | — |
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.
Ford filings that name P0451
Source: NHTSA manufacturer communicationsBulletins and campaigns Ford filed with NHTSA whose summary names P0451. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- SSM 50306 Service bulletin2021-11-23 · Engine And Engine Cooling
- Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford
- SSM 50348 Service bulletin2021-12-14 · Electrical System
- Some 2020-2022 Explorer/Aviator vehicles may exhibit an illuminated MIL with multiple diagnostic trouble codes (DTC). These DTCs may include P04F0, P008A, P0451, P0455, P0456, P0496 and/or P018C. This may be due to the wiring harness connection at connector C1198. Prior to replacement of any components, inspect the connector and wiring harness for any damage or pin fit concerns. If any damage or p
- SSM 51132 Service bulletin2022-10-14 · Electrical System
- Some 2020-2022 Explorer vehicles equipped with a 2.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with multiple diagnostic trouble codes (DTCs). These DTCs may include P04F0, P008A, P0451, P0455, P0456, P0496 and/or P018C. This may be due to the wiring harness connection at connector C1198. Prior to replacement of any components, inspect the connector and wiring harness for
- TSB 24-2199 Service bulletin2024-07-02 · Fuel/Propulsion System
- Some 2024 Edge vehicles equipped with a 2.0L engine and all-wheel drive (AWD) may experience the fuel tank not filling up beyond half-full, hard to start, and/or stalls upon restart after refueling. A malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P04F0, P0451, P0455, and/or P0496 may also be stored in the powertrain control module (PCM). This may be due to a disconnected fu
- TSB 25-2431 Service bulletin2025-09-13 · Power Train
- *This article supersedes TSB 24-2199 to add the rear half shaft seals to the TSB parts list. Some of the vehicles listed in the model statement above may exhibit one of the following conditions: *Fuel tank not filling up beyond half-full *Hard to start *Stalls upon restart after refueling *A malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P04F0, P0451, P0455, and/or P0496 may
What P0451 means
Source: SAE J2012 / OBD-IIP0451 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
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.
Common questions
Source: NHTSA files and the OBD-II standardIs P0451 a known problem on Ford vehicles?
It is a documented one: NHTSA's files hold 22 manufacturer filings and 0 owner reports naming P0451 on 15 Ford model years (2018–2024). 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 P0451 appear on most?
2022 Explorer (4 documents), 2021 Explorer (4 documents), 2024 Edge (2 documents).
Does P0451 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.