Drive Motor B Inverter Voltage Too High
The drive motor B inverter DC-link voltage exceeds the protection threshold. Regenerative braking overshoot or BMS regulation fault.
Affected components
- Drive motor b inverter
- Dc link capacitor
Common causes
- High likelihood: Regenerative braking overshoot
- Medium likelihood: BMS regulation outside calibration
Possible symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
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.