Battery A State of Charge Performance
The battery monitor reports a State of Charge (SoC) value that does not match the rest-voltage and current pattern - typically a battery near end of life, sulfation, or a deep discharge that the SoC algorithm has not converged on.
Affected components
- Battery a
- Battery monitor module
Common causes
- High likelihood: Battery aged or sulfated
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.