U0420 code: Invalid Data Received From Power Steering Control Module A
Code U0420 is named in 29 US owner complaints, 1 of them (3%) after a crash. Models: 14, model years 2014–2023.
What the code means
Invalid Data Received From Power Steering Control Module A. Generic meaning per SAE J2012 (the same for all makes).
How to read U0420: 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 420 identify the specific fault.
Electric power steering, steering angle sensor and steering column codes. After a front wheel impact the steering angle sensor often needs calibration, and a bent rack or tie rod produces errors scanners describe as invalid data.
Key figures
- Complaints with this code
- 29
- after a crash
- 1 (3%)
- Models
- 14
- Model years
- 2014–2023
Which models and years
Models whose owners name this code (14). Years link to the model year problems page.
| Model | Years | Complaints |
|---|---|---|
| Chevrolet Colorado | 2015, 2016 | 10 |
| Ford Fusion | 2014, 2016 | 3 |
| Chevrolet Malibu | 2020, 2023 | 2 |
| Chrysler 200 | 2015 | 2 |
| GMC Canyon | 2015, 2016 | 2 |
| Jeep Cherokee | 2020 | 2 |
| Chevrolet Cheverolet SS | 2017 | 1 |
| Ford Escape Hybrid | 2020 | 1 |
| Ford Explorer | 2016 | 1 |
| Ford Flex | 2016 | 1 |
| Ford Taurus | 2015 | 1 |
| GMC Yukon | 2021 | 1 |
| Honda CR-V Hybrid | 2023 | 1 |
| Jeep Compass | 2018 | 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
- Compare steering wheel and wheel positions in photos: an off-center wheel with straight tires points to a bent tie rod or rack.
- After front suspension repair, budget steering angle sensor calibration and an alignment.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
Inspection revealed DTC codes for power steering of U0420:00 (invalid data received from power steering module) and U3000:49 (control module internal malfunction). Scanner evidences power steering position sensor data not being reported. Vehicle VIN indicates that it was included in NHTSA recall 21V455000.
The vehicle was taken to Auto Zone, where the portable diagnostic tester was attached to the vehicle. The diagnostic machine retrieved DTC: U0073, P0700, P25A2, U0101,U0129,U0146, U18D5, U18D7, U2413, U0073-00, U0100-00, U0140-00, U0151-00, U026A-00, U0420-00 and U0100.
Sudden total loss of power steering assist while driving over a small pothole on Pearman Dairy Road. Full details, diagnostic trouble codes (U0420-00, U0010-00, U1428-00, B2309-64), and Jeep case [ref] are fully documented in the attached formal PDF letter
Related codes
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.