U0122
Lost Communication With Vehicle Dynamics Control Module
U0122 is an OBD-II diagnostic trouble code meaning: Lost Communication With Vehicle Dynamics Control Module. Common causes: open or short circuit in wiring harness, poor contact in vdc module connector. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Disabling the stabilization system
- Disabling ABS
- Other related errors appear
- Deterioration of controllability in difficult conditions
Causes
- Open or short circuit in wiring harness
- Poor contact in VDC module connector
- Malfunction of the vehicle dynamics module itself
- Module power problems
- Damage to the CAN bus
How to Fix
- Check the integrity of the wiring harness to the VDC module
- Inspect and clean the contacts in the connectors
- Check fuses and relays associated with the module
- Scan other modules for communication errors
- Repair only from an authorized dealer
Related codes
Error U0122 by Vehicle Brand
FAQ
What does the U0122 code mean?
U0122 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Vehicle Dynamics Control Module
What causes a U0122 error code?
The most common causes of U0122 include: Open or short circuit in wiring harness; Poor contact in VDC module connector; Malfunction of the vehicle dynamics module itself; Module power problems.
How do I fix a U0122 diagnostic trouble code?
To fix U0122: Check the integrity of the wiring harness to the VDC module. Inspect and clean the contacts in the connectors. Check fuses and relays associated with the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0122?
Do not drive — repair immediately
How much does it cost to fix U0122?
The estimated repair cost for U0122 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat