P0141 A fault in the heater circuit of the downstream bank 1 oxygen sensor
1 owner report and 5 manufacturer filings across 6 model years from Fiat, Ford.
Where P0141 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2016 Fiat 500 | Power Train | 1 | — | Oxygen sensor → |
| 2016 Fiat 500 L | Electrical System | 1 | — | Oxygen sensor → |
| 2019 Ford EcoSport | Power Train | 1 | — | Oxygen sensor → |
| 2018 Ford EcoSport | Electrical System | 1 | — | Oxygen sensor → |
| 2019 Ford Escape | Engine | — | 1 | Oxygen sensor → |
| 2016 Ford Transit Connect | Engine | 1 | — | Oxygen sensor → |
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.
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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.
The second, P0141, says the heater in 02 sensor is taking too long to warm up
5 manufacturer filings name P0141. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0141.
- TSB 19-2005 Service bulletin2018-12-12 · Power Train — Automatic Transmission
- Some 2018-2019 EcoSport vehicles equipped with a 2.0L Duratec engine and an automatic transmission and built on 1-Sep-2017 and through 28-Nov-2018 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0137 and/or P0141. This may be due to a faulty catalyst monitor sensor (CMS) as well as powertrain control module (PCM) software. Follow the Service Proced
- TSB 16-0163 Service bulletin2016-12-09 · Engine
- SOME 2014-2016 TRANSIT CONNECT VEHICLES EQUIPPED WITH THE 2.5L ENGINE MAY EXHIBIT A CONSTANT OR INTERMITTENT ILLUMINATED MIL WITH VARIOUS DRIVABILITY ISSUES AND ONE OR MORE OF THE FOLLOWING DTCS: P0010, P0103, P0104, P0122, P0131, P0135, P0137, P0141, P0201-P0204, P0217, P0222, P0223, P025A, P0300, P0301-P0304, P0316, P0351-P0354, P0400, P0403, P0443, P1285, P1289, P128A, P1299, P2101, P2107, P211
- 18-105-15 Service bulletin2015-12-15 · Electrical System
- Flash: 1.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience one of the following conditions or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find a Diagnostic Trouble Code has been set in the PCM: ?
- 18-061-15 Service bulletin2015-08-29 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
- Flash: 1.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find the following Diagnostic Trouble Code (DTC) has been set in the PCM. P0141 - O2 Sensor 1
What P0141 means
Source: SAE J2012 / OBD-IIA fault in the heater circuit of the downstream bank 1 oxygen sensor.
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 P0141
Source: NHTSA files and the OBD-II standardCan I keep driving with P0141 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. 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.