Drive Motor B Inverter Over Temperature
The drive motor B inverter reports junction temperature above the protection threshold. Sustained high load or cooling failure.
Affected components
- Drive motor b inverter
Common causes
- High likelihood: Inverter cooling failure
- Medium likelihood: Sustained high inverter load
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
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.