P2601: 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 P2601 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

7 complaints filed with NHTSA mention P2601, 7 of them since 2015, across 2 different models. The component owners most often filed it under: engine.

Most-reported models

VehicleComplaintsModel years reported
FORD ESCAPE62017, 2018, 2019

Manufacturer service bulletins that name P2601

11 technical service bulletins and manufacturer communications filed with NHTSA mention P2601, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • DODGE HORNET PHEV (2024), bulletin 11010631: "Flash: Power Inverter Module (PIM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set one or more of the following Diagnostic Trouble Codes (DTC)s: **P2601-…
  • ALFA ROMEO TONALE PHEV (2024), bulletin 11010632: "Flash: Power Inverter Module (PIM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set one or more of the following Diagnostic Trouble Codes (DTC)s: **P2601-…
  • DODGE HORNET (2024), bulletin 11011905: "Flash: Power Inverter Module (PIM) 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): P2601-0…
  • FORD F-150 (2021), bulletin 10189792: Some 2021 F-150 vehicles equipped with a 3.5L EcoBoost engine and built on or before 02-Mar-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P060B, P0420, P0430, P0…

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.