P061B: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P061B on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

41 complaints filed with NHTSA mention P061B, 15 of them since 2015, across 16 different models. The component owners most often filed it under: vehicle speed control.

Most-reported models

VehicleComplaintsModel years reported
FORD FREESTYLE232005, 2006, 2007
FORD FIVE HUNDRED32005, 2006

Manufacturer service bulletins that name P061B

151 technical service bulletins and manufacturer communications filed with NHTSA mention P061B, from 13 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • FORD EXPLORER (2024, 2025, 2020, 2021), bulletin 11008211: Some 2020-2025 Police Interceptor Utility hybrid vehicles may exhibit multiple warning messages, various driveability concerns and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P06…
  • JEEP WRANGLER 4XE (2024), bulletin 11001128: "Flash: Transmission Control Module (TCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):…
  • MAZDA CX-50 (2023), bulletin 10226823: Some customers may complain that the CHECK ENGINE light turns ON after a cold start, then exhibits lack of power from the engine with DTC P061B:00 stored in memory. This is caused by improper control software of the PCM.…
  • FORD F-450 SD (2023), bulletin 10248365: Some 2023 F-Super Duty vehicles equipped with a 6.8L or 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P061B, U0140, U3035 and/or U3036 stored in the powertrai…
  • HONDA ACCORD (2018, 2019, 2020, 2021), bulletin 10202859: Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
  • ACURA TLX (2021, 2022, 2019, 2020), bulletin 10202909: Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.