U0122: Communication with the stability control unit has been lost
Communication with the stability control unit has been lost. That aid may not work.
| Code | U0122 |
|---|---|
| System | Communication network |
| Group | U01xx, Lost communication with control units |
| Type | Generic: it means the same on every make |
How to read and clear U0122 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see U0122 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- U011D The all wheel drive control unit is not answering on the car network
- U011E The throttle actuator B control unit is not answering on the car network
- U0120 The starter motor generator control unit is not answering on the car network
- U0121 Lost communication with the ABS control module
- U0123 The yaw rate sensor module is not answering on the car network
- U0124 The lateral acceleration sensor module is not answering on the car network
- U0125 Communication with the multi-axis acceleration sensor module has been lost
- U0126 Lost communication with the steering angle sensor module
- U0100 Lost communication with engine control module (ECM/PCM A)
- U0101 Lost communication with transmission control module (TCM)
- U0102 Lost communication with transfer case control module
- U0103 Lost communication with the gear shift module
What does code U0122 mean?
Communication with the stability control unit has been lost. That aid may not work.
How do you clear U0122?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, U0122 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
