P226C
2 owner reports and 7 manufacturer filings across 5 model years from Nissan, Ram.
Where P226C shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2016 Nissan Titan XD | Engine | 3 | 1 | |
| 2017 Nissan Titan | Equipment Adaptive/Mobility | 1 | 1 | |
| 2019 Nissan Titan | Engine | 1 | — | |
| 2018 Nissan Titan | Engine | 1 | — | |
| 2026 Ram 2500 | 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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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.
Each time this has happen the check engine light has come on and I have check the codes with a code reader and it is always a "P226C Turbocharger Boost Control 'A' Slow Response"
7 manufacturer filings name P226C. 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 P226C.
- OTHERDOC_147 Over-the-air update2025-09-05 · Electrical System
- Powertrain Contol Module Over The Air Update to V2B (Diesel Only) Software Version (FOTA) 2025 - 2026 (DJ) RAM 2500 Pickup 2025 - 2026 (D2) RAM 3500 Pickup 2025 - 2026 (DD) RAM 3500 Cab Chassis 2025 - 2026 (DF) RAM 3500 10K Lb. Cab Chassis2025 - 2026 (DP) RAM 4500/5500 Cab Chassis Customers may experience one or more of the following: - Power Inverter (110V connection) drops out when shifting from
- NTB20-071 Service bulletin2020-10-09 · Engine And Engine Cooling
- 2016-2019 TITAN XD DIESEL; MIL ON WITH DTC P226C STORED IF YOU CONFIRM The MIL is ON and DTC P226C (TC BOOST CONTROL SLOW RESPONSE) IS stored, And DTC P00AF (BOOST PRESSURE CONTROL) is NOT stored in the ECM, And Binding and/or resistance is observed when the rotary turbine control valve is moved from one stop to the other (full span), by hand. NOTE: Disconnect the linkage at the actuator to
- NTB16-095a Service bulletin2017-06-07 · Equipment Adaptive/Mobility
- 2016 TITAN XD; MIL ON WITH DTC P226C OR P0471 WHEN OPERATED AT OR BELOW 32°F (0°C) This bulletin applies only to vehicles equipped with a Cummins 5.0L V8 Diesel engine. This bulletin has been amended. IF YOU CONFIRM section was updated. No other changes were made. Please discard all previous versions of this bulletin.
- NTB16-095 Service bulletin2016-10-07 · Engine And Engine Cooling — Exhaust System — Emission Control
- 2016 TITAN XD; MIL ON WITH DTC P226C OR P0471 IF YOU CONFIRM One or both of the following DTCs are stored: - P226C (Turbocharger Boost Control Slow Response) - P0471 (Exhaust Pressure Sensor "A" Circuit Range/Performance) and There are no drivability issues. ACTION 1. Save Computer Data with CONSULT-III plus (C-III plus). 2. At step 6 of the reprogramming procedure, confirm this bulleti
What P226C means
Source: SAE J2012 / OBD-IIP226C 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 P226C
Source: NHTSA files and the OBD-II standardCan I keep driving with P226C 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.