P0B22
Hybrid/EV Battery Pack Voltage Sense D Circuit Intermittent/Erratic
Generic OBD-II
Common symptoms
What you'll notice
- Check the battery connections and ensure they are clean and tightly secured
- Inspect and test the battery voltage sensor for any damage or malfunction
- Check the wiring harness for any loose or damaged connections
- Check other stored error codes and address them in the order of significance
- Perform a complete battery and electrical system diagnosis to identify any other possible causes or related issues
Common causes
Most likely first
- Loose or corroded wiring or connections in the hybrid/EV battery pack voltage sensing circuit
- Faulty hybrid/EV battery pack voltage sensor
- Malfunctioning hybrid/EV battery management system
- Defective hybrid/EV battery pack controller
- Inconsistent or unstable voltage output from the hybrid/EV battery pack
How to diagnose & fix
Work through it in order
- Check engine light illumination
- Poor acceleration or lack of power
- Intermittent loss of power while driving
Read & clear P0B22 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.