U0122
Lost Communication With Vehicle Dynamics Control Module
Severity: HIGH
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