P0DCA
Hybrid/EV Battery Cell Balancing Circuit H Stuck Off
Generic OBD-II
Common symptoms
What you'll notice
- Check the battery voltage levels to ensure they are balanced
- Inspect and replace any faulty battery cells
- Perform a battery reset or recalibration
- Check and update the battery management system software
- If all else fails, consider replacing the hybrid/EV battery pack
Common causes
Most likely first
- Hybrid/EV battery cell imbalance
- Faulty hybrid/EV battery management system
- Incorrect charging/discharging of hybrid/EV battery cells
- Damaged or degraded hybrid/EV battery cells
- Overheating of hybrid/EV battery cells
How to diagnose & fix
Work through it in order
- Reduced battery capacity and range
- Poor performance and acceleration
- Illuminated warning light
Read & clear P0DCA yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.