Error code
OBD2 U0122
OBD2U0122
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With Vehicle Dynamics Control Module.
Severity
highDrive with caution; reduced stability and safety features could be compromised.
Summary
U0122 indicates that there is no communication between the OBD-II system and the Vehicle Dynamics Control Module, which can affect stability control systems.
Symptoms
- Check engine light comes on
- Vehicle may experience reduced performance or instability
Common Causes
- Faulty wiring or connectors in the vehicle dynamics control module area
- Malfunctioning vehicle dynamics control module itself
Fixes
FAQ
How can I fix U0122?
Consult a professional mechanic to diagnose the issue, as it may involve checking wiring and connectors or replacing the vehicle dynamics control module.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'