Battery B State of Charge Performance
State of charge of battery B (typically auxiliary or hybrid battery) shows performance fault — does not behave according to charging model.
Affected components
- Battery b
- Charging system
Common causes
- High likelihood: Battery B aged or sulfated
Diagnostic notes
- The malfunction indicator lamp may illuminate
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.