Replace 12V Battery
The vehicle electrical system reports that the 12V auxiliary battery has reached end-of-life and should be replaced. State-of-health below threshold.
Affected components
- Aux 12v battery
Common causes
- High likelihood: 12V battery aged
- Medium likelihood: Repeated deep discharge events
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.