P2B61
0 owner reports and 160 manufacturer filings across 28 model years from Mazda.
Where P2B61 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2021 Mazda CX-3 | Engine | 7 | — | |
| 2020 Mazda CX-3 | Engine | 7 | — | |
| 2019 Mazda CX-3 | Engine | 7 | — | |
| 2021 Mazda CX-30 | Engine | 7 | — | |
| 2020 Mazda CX-30 | Engine | 7 | — | |
| 2021 Mazda CX-5 | Engine | 7 | — | |
| 2020 Mazda CX-5 | Engine | 7 | — | |
| 2019 Mazda CX-5 | Engine | 7 | — | |
| 2018 Mazda CX-5 | Engine | 7 | — | |
| 2021 Mazda Mazda3 | Engine | 7 | — | |
| 2020 Mazda Mazda3 | Engine | 7 | — | |
| 2019 Mazda Mazda3 | Engine | 7 | — | |
| 2021 Mazda Mazda6 | Engine | 7 | — | |
| 2020 Mazda Mazda6 | Engine | 7 | — | |
| 2019 Mazda Mazda6 | Engine | 7 | — | |
| 2018 Mazda Mazda6 | Engine | 7 | — | |
| 2022 Mazda CX-30 | Engine | 6 | — | |
| 2022 Mazda CX-5 | Engine | 6 | — | |
| 2022 Mazda Mazda3 | Engine | 6 | — | |
| 2023 Mazda CX-30 | Engine | 5 | — | |
| 2024 Mazda CX-5 | Engine | 5 | — | |
| 2023 Mazda CX-5 | Engine | 5 | — | |
| 2023 Mazda Mazda3 | Engine | 5 | — | |
| 2024 Mazda CX-30 | Engine | 3 | — | |
| 2024 Mazda Mazda3 | Engine | 3 | — |
Showing the 25 model years where P2B61 appears most; it is on file for 28 in total.
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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P2B61 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P2B61 on that maker’s vehicles.
What it gets filed under
160 manufacturer filings name P2B61. 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 P2B61.
- 01-001-26b Service bulletin2026-03-04 · Engine
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. Vehicles with SKYACTIV-G 2.5T are not applicable to this
- 01-003-25 Service bulletin2025-03-13 · Engine
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to
- 01-005-24a Service bulletin2024-06-28 · Engine
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to
- 01-005-24 Dlr Ltr Other2024-06-12 · Engine
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to
- 01-005-24 Service bulletin2024-06-11 · Engine
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to
- 01-005-23 Service bulletin2023-02-16 · Engine And Engine Cooling
- Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not
What P2B61 means
Source: SAE J2012 / OBD-IIP2B61 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 P2B61
Source: NHTSA files and the OBD-II standardCan I keep driving with P2B61 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.