P0046
0 owner reports and 21 manufacturer filings across 9 model years from Chevrolet, Ford, GMC.
Where P0046 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2022 Ford F-250 Super Duty | Engine | 3 | — | |
| 2021 Ford F-250 Super Duty | Equipment | 3 | — | |
| 2022 Ford F-350 Super Duty | Power Train | 3 | — | |
| 2021 Ford F-350 Super Duty | Power Train | 3 | — | |
| 2022 Ford F-450 Super Duty | Power Train | 3 | — | |
| 2021 Ford F-450 Super Duty | Equipment | 3 | — | |
| 2019 Chevrolet Colorado | Electrical System | 1 | — | Battery → |
| 2018 Chevrolet Silverado 3500HD | Electrical System | 1 | — | Battery → |
| 2019 GMC Canyon | Engine | 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.
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P0046 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0046 on that maker’s vehicles.
What it gets filed under
21 manufacturer filings name P0046. 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 P0046.
- SSM 53328 Service bulletin2025-01-24 · Unknown Or Other
- Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P0299, P132A, P226C, P2263, P2564, P2565, P2598, P259E, and/or P259F stored in the powertrain control module.
- SSM 51150 Service bulletin2022-10-25 · Engine And Engine Cooling
- Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P132A, P2564, P2565, P2598, P259E, and/or P259F stored in the powertrain control module. If Workshop Manual (WSM) diagno
- SSM 50564 Service bulletin2022-03-07 · Engine And Engine Cooling
- Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P132A, P2564, P2565, P2598, P259E, and/or P259F stored in the powertrain control module. If Workshop Manual (WSM) diagno
- 19NA127 Service bulletin2019-06-11 · Electrical System
- This informational bulletin provides information for dealers/technicians on Check Engine Light Illuminated with DTC?s P0106, P0046, P20EE, P249D, and/or P249E Set.
- PIP5614 Service bulletin2018-12-10 · Electrical System — Software
- This Preliminary information communicates to the dealer technicians that DTCs P0046, P113B and P206B may be caused by a software anamoly. The anamoly should be corrected by updating the engine control module (ECM).
What P0046 means
Source: SAE J2012 / OBD-IIP0046 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 P0046
Source: NHTSA files and the OBD-II standardCan I keep driving with P0046 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.