P0C28
0 owner reports and 12 manufacturer filings across 6 model years from Cadillac, Ford.
Where P0C28 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2016 Ford C-MAX | Electrical System | 4 | — | Battery → |
| 2016 Ford Fusion | Electrical System | 4 | — | Battery → |
| 2018 Cadillac CT6 | Power Train | 1 | — | |
| 2017 Ford C-MAX | Electrical System | 1 | — | Battery → |
| 2025 Ford Mustang Mach-E | Electrical System | 1 | — | Battery → |
| 2024 Ford Mustang Mach-E | Electrical System | 1 | — | Battery → |
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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P0C28 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0C28 on that maker’s vehicles.
What it gets filed under
12 manufacturer filings name P0C28. 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 P0C28.
- TSB 25-2274 Service bulletin2025-06-25 · Electrical System
- Some of the vehicles listed in the Model statement above equipped with lithium-ion phosphate (LFP) standard range battery with minor feature code HTHAH may exhibit an illuminated powertrain malfunction indicator (wrench) lamp with the DTC P0C28 stored in the SOBDMC
- TSB 18-2282 Service bulletin2018-09-18 · Electrical System
- Some 2013-2017 Fusion Energi and C-Max Energi vehicles may exhibit an illuminated MIL with DTC P0C27 and/or P0C28. Follow the Service Procedure steps to correct the condition.
- 18199 Service bulletin2018-09-18 · Power Train — Automatic Transmission
- 18199 - Service Update - Software that controls the electric motor for the auxiliary transmission fluid pump has a fault in the logic used for restarting the pump. During a pump restart attempt, motor current over threshold can occur resulting in DTC P0C28 (Auxiliary Transmission Fluid Pump High Current). Additionally, DTC P0B07 (Auxiliary Transmission Fluid Pump Motor Phase W Low Current) was inc
- TSB160050 Service bulletin2016-03-23 · Electrical System
- Energi - Malfunction Indicator lamp (MIL) with diagnostic trouble code (DTC) P0C27 AND/OR P0C28
- 16-0050 Service bulletin2016-03-23 · Electrical System
- ENERGI - MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P0C27 AND/OR P0C28 ISSUE Some 2016 Fusion Energi and C-Max Energi vehicles may exhibit a MIL with DTC P0C27 and/or P0C28. ACTION Reprogram the powertrain control module (PCM) and the hybrid powertrain control module (SOBDMC) to the latest calibration using IDS release 99.03 or higher. Make sure you are connected
What P0C28 means
Source: SAE J2012 / OBD-IIP0C28 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 P0C28
Source: NHTSA files and the OBD-II standardCan I keep driving with P0C28 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.