High Voltage System Voltage High
The high-voltage system voltage is above the expected window. Regenerative braking overshoot or BMS regulation fault.
Affected components
- Hv battery
- Bms
- Hv bus
Common causes
- High likelihood: HV battery cells aged
- Medium likelihood: BMS regulation outside calibration
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
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.