AI DamageU0401 code: Invalid Data Received From ECM/PCM A
Code U0401 is named in 71 US owner complaints. Models: 43, model years 2006–2024.
There is little data for this code or its meaning is ambiguous, so this page is not indexed.
What the code means
Invalid Data Received From ECM/PCM A. Generic meaning per SAE J2012 (the same for all makes).
How to read U0401: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 401 identify the specific fault.
Codes for engine, transmission, transfer case and hybrid system modules. When valuing an auction car the key question is whether the fault is crash related (cut wiring, damaged radiator) or a known defect of the model.
Key figures
- Complaints with this code
- 71
- Models
- 43
- Model years
- 2006–2024
Which models and years
Models whose owners name this code (43). Years link to the model year problems page.
| Model | Years | Complaints |
|---|---|---|
| Ford F-150 | 2012, 2013, 2014, 2015, 2016, 2017 | 9 |
| Honda Accord | 2018, 2020 | 4 |
| Honda Pilot | 2016, 2019 | 4 |
| Dodge Dart | 2015, 2016 | 3 |
| Honda CR-V | 2017, 2018, 2019 | 3 |
| Jeep Compass | 2014, 2015 | 3 |
| Acura MDX | 2016, 2017 | 2 |
| Chevrolet Malibu | 2016, 2017 | 2 |
| Chrysler 200 | 2011 | 2 |
| Ford Escape Hybrid | 2020 | 2 |
| Ford Focus | 2014 | 2 |
| Ford Freestyle | 2007 | 2 |
| Honda HR-V | 2016 | 2 |
| Jeep Patriot | 2014 | 2 |
| Acura TLX | 2021 | 1 |
| Buick Enclave | 2018 | 1 |
| Chevrolet Blazer | 2019 | 1 |
| Chevrolet Bolt EV | 2017 | 1 |
| Chevrolet Colorado | 2017 | 1 |
| Chrysler Pacifica | 2019 | 1 |
| Chrysler Pacifica Plug-IN Hybrid | 2018 | 1 |
| Dodge Durango | 2023 | 1 |
| Ford Bronco | 2024 | 1 |
| Ford Five Hundred | 2006 | 1 |
| Ford Flex | 2013 | 1 |
| Ford Fusion | 2016 | 1 |
| Ford Maverick Hybrid | 2023 | 1 |
| Ford Mustang | 2015 | 1 |
| GMC Acadia | 2021 | 1 |
| GMC Sierra 2500 | 2020 | 1 |
| GMC Terrain | 2020 | 1 |
| Honda Accord Hybrid | 2018 | 1 |
| Honda Civic | 2020 | 1 |
| Honda FIT | 2018 | 1 |
| Honda Insight | 2020 | 1 |
| Honda Odyssey | 2019 | 1 |
| Honda Ridgeline | 2023 | 1 |
| Jeep Grand Cherokee | 2007 | 1 |
| Jeep Wrangler | 2021 | 1 |
| Lincoln MKX | 2013 | 1 |
Components named together with the code
Component as the owner filed it (one complaint can list several).
Complaints by model year
What to do if an auction car has this code
- Separate crash damage (wiring, radiator, mounts) from known model defects: see the model year problems page.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
Three days later, the vehicle again failed to start, the check-engine light illuminated, and an independent scan returned U0401 (Invalid Data Received From ECM/PCM A). The vehicle was returned to the dealership on August 22, 2026.
My vehicle has been experiencing shaking/rough operation and multiple warning lights while driving. Diagnostic scans have shown P0301 â Cylinder 1 Misfire and U0401-68. The ignition coils were replaced with original/OEM parts in an attempt to correct the issue.
The scan shows a communication fault (U0401, "Invalid Data Received From PCM") present across five separate control modules: ABS, Airbag/Occupant Classification System, Power Steering Control Module, Tire Pressure Monitoring/Body Control, and the engine module.
Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.