P2681: owner reports and bulletins
Got P2681 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
16 complaints filed with NHTSA mention P2681, 16 of them since 2015, across 5 different models. The component owners most often filed it under: engine.
Most-reported models
| Vehicle | Complaints | Model years reported |
|---|---|---|
| TOYOTA COROLLA | 6 | 2020, 2021 |
| TOYOTA RAV4 | 6 | 2019, 2020 |
Manufacturer service bulletins that name P2681
23 technical service bulletins and manufacturer communications filed with NHTSA mention P2681, from 6 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:
- VOLKSWAGEN ATLAS CROSS SPORT (2024), bulletin 11007392: Update ECM programming for DTCs P00B7, Po116 or P2681.
- RAM 1500 (2022, 2023), bulletin 11001237: "Broken Internal Coolant Valve Gear **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):** P26A3 - Eng…
- FORD ESCAPE (2017, 2018, 2019), bulletin 10176943: Some 2017-2019 Escape vehicles equipped with a 1.5L or 2.0L engine may exhibit fuse F34 open with an illuminated MIL and diagnostic trouble codes (DTCs) P0034, P023A, P0245, P0480, P0481, P0645, P06A0, P06DB, P188D, P026…
- DODGE DURANGO (2016, 2017), bulletin 10176589: Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves…
- JEEP GRAND CHEROKEE (2016, 2017), bulletin 10176589: Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves…
- LINCOLN CONTINENTAL (2017), bulletin 10093867: SOME 2017 CONTINENTAL VEHICLES EQUIPPED WITH A 2.7L OR 3.0L ENGINE WITH AWD AND BUILT ON OR BEFORE 30-SEP-2016 MAY EXHIBIT AN ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL), LOW OIL PRESSURE WARNING, INOPERATIVE AIR CONDIT…
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.