U019F
1 owner report and 34 manufacturer filings across 25 model years from BMW, Ford, Lincoln, Mazda and others.
Where U019F shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2017 Ford C-MAX | Electrical System | 3 | — |
| 2018 Ford C-MAX | Electrical System | 2 | — |
| 2016 Ford C-MAX | Electrical System | 2 | — |
| 2019 Lincoln MKZ | Electrical System | 2 | — |
| 2018 Lincoln MKZ | Electrical System | 2 | — |
| 2016 Lincoln MKZ | Electrical System | 2 | — |
| 2025 Mazda CX-70 | Engine | 2 | — |
| 2025 Mazda CX-90 | Engine | 2 | — |
| 2024 Mazda CX-90 | Engine | 2 | — |
| 2016 BMW 4 Series | Electrical System | — | 1 |
| 2023 Mercedes-Benz AMG GT | Engine And Engine Cooling | 1 | — |
| 2022 Mercedes-Benz AMG GT | Engine And Engine Cooling | 1 | — |
| 2021 Mercedes-Benz AMG GT | Engine And Engine Cooling | 1 | — |
| 2020 Mercedes-Benz AMG GT | Engine And Engine Cooling | 1 | — |
| 2019 Mercedes-Benz AMG GT | Engine And Engine Cooling | 1 | — |
| 2021 Mercedes-Benz CLS-Class | Engine And Engine Cooling | 1 | — |
| 2020 Mercedes-Benz CLS-Class | Engine And Engine Cooling | 1 | — |
| 2019 Mercedes-Benz CLS-Class | Engine And Engine Cooling | 1 | — |
| 2023 Mercedes-Benz E-Class | Engine And Engine Cooling | 1 | — |
| 2022 Mercedes-Benz E-Class | Engine And Engine Cooling | 1 | — |
| 2021 Mercedes-Benz E-Class | Engine And Engine Cooling | 1 | — |
| 2020 Mercedes-Benz E-Class | Engine And Engine Cooling | 1 | — |
| 2019 Mercedes-Benz E-Class | Engine And Engine Cooling | 1 | — |
| 2022 Mercedes-Benz GLE-Class | Engine And Engine Cooling | 1 | — |
| 2021 Mercedes-Benz GLE-Class | Engine And Engine Cooling | 1 | — |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
I used my personal OBD-II scanner and retrieved fault code U019F, which indicates “Lost Communication with Engine Coolant Pump Control Module.� This is directly related to the recalled component
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names U019F. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- SA-029-24 Other2024-05-10 · Engine
- The CX-90 and CX-70 PHEV are equipped with two electric water pumps that look similar but have different part numbers. CAUTION: If the wrong water pump is ordered or they are reversed, DTC U019F could be set.
- PF-24-05 Other2024-05-10 · Engine
- The CX-90 and CX-70 PHEV is equipped with two electric water pumps that look similar but have different part numbers and functionalities. CAUTION: If the wrong water pump is ordered or they are installed reversed, DTC U019F could be set.
- LI20.10-P-0753742022-11-10 · Engine And Engine Cooling
- Complaint Red coolant warning in instrument cluster. Fault codes U019F00 or U019F87 current/stored in MRG1 control unit. Cause Various causes Remedy Perform guided test for fault code U019F with XENTRY diagnosis. Verify the following connections are clean and tight. Correct any problems and retest pump actuation: -12V plug at M75/11 -48V plug at M75/11 -48V connector X192/4 -Connections
- SSM 477902019-02-06 · Electrical System
- Some 2013-2019 Fusion/MKZ and 2013-2018 C-Max vehicles with 2.0L HEV/PHEV engine may exhibit multiple drivability or electrical concerns with one or more diagnostic trouble codes, being the most common P26C3, P26CA, P26D0, P2800, P2802, U019F and U0284. On Fusion/MKZ inspect connectors C146, C1651, C1812, C168C, C1717 and C134 for signs of water entry or corrosion. On C-Max, inspect connectors C13
- SSM 477902019-02-06 · Electrical System
- Some 2013-2019 Fusion/MKZ and 2013-2018 C-Max vehicles with 2.0L HEV/PHEV engine may exhibit multiple drivability or electrical concerns with one or more diagnostic trouble codes, being the most common P26C3, P26CA, P26D0, P2800, P2802, U019F and U0284. On Fusion/MKZ inspect connectors C146, C1651, C1812, C168C, C1717 and C134 for signs of water entry or corrosion. On C-Max, inspect connectors C13
- SSM 468572017-10-06 · Electrical System
- Some 2017 C-MAX vehicles built 1-Jun-2017 and through 26-Sep-2017 may exhibit an illuminated MIL with DTCs P26D0, P26CA, P059F, U019F, U0194, U091F and/or U0284. This may be due to water in the jumper harness connector C1651 and the attached connector on the active grill shutter actuator. Remove connector, clean and dry, add electrical grease Motorcraft XG-12 or equivalent to the terminals. Engine
What U019F means
Source: SAE J2012 / OBD-IIU019F 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. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about U019F
Source: NHTSA files and the OBD-II standardCan I keep driving with U019F stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.