U0122 code: Lost Communication With Vehicle Dynamics Control Module
Code U0122 is named in 7 US owner complaints. Models: 7, model years 2014–2025.
What the code means
Lost Communication With Vehicle Dynamics Control Module. Generic meaning per SAE J2012 (the same for all makes).
How to read U0122: 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 122 identify the specific fault.
ABS/ESC codes: wheel speed sensors, the ABS hydraulic unit and pump, brake booster, pressure and yaw sensors. A hit to a wheel or suspension often damages the wheel speed sensor or its wiring, so on a damaged car this code is a reason to inspect the hub, knuckle and control arms, not just swap the sensor.
Key figures
- Complaints with this code
- 7
- Models
- 7
- Model years
- 2014–2025
Which models and years
Models whose owners name this code (7). Years link to the model year problems page.
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
- Inspect the wheel and suspension on the impact side: the wheel speed sensor is often damaged together with the hub or knuckle.
- Check whether the ABS and ESC lights stay on after start-up.
- After replacing sensors or the hydraulic unit, bleeding and scan tool adaptation may be required.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
Subaru SSM4 scan recorded 17 unique DTCs across 10 control systems, including C1460 Brake Booster Abnormality; U1131 Lost Comm Power Steering Control Module; U0151 Restraints Control Module; U0122/U1122 VDC; U0126 Steering Angle Sensor; plus multiple EyeSight faults.
ESP control unit software Recall [phone] Recall [phone] Recall [phone] And my car shows thereâs cero recall active but is giving me problem showing code: U0121 U1110 U0122 B227D U0423 B227D
Once I did this and turned on the car, it rebooted and all errors were cleared. Dealership was able to find the following errors logged: U0100-00, U0100-f1, U0101-00, U0122-00, U0122-f1, U0129-00, U0131-00, U0131-f1, U0151-00, and U0416-68.
Related codes
- C0020ABS Pump Motor Control
- U0121Lost Communication With Anti-Lock Brake System…
- U0415Invalid Data Received From Anti-Lock Brake…
- U0416Invalid Data Received From Vehicle Dynamics…
- U0418Invalid Data Received From Brake System…
- C0561Vacuum Sensor A/B Correlation
- C0021Brake Booster Performance
- C0063Yaw Rate Sensor
- C0040Brake Pedal Switch A
- C006CStability System
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.