Drive Motor A Excitation Current Too High
The drive motor A excitation current exceeds the calibrated maximum. Field excitation cannot be measured or controlled reliably.
Affected components
- Drive motor a excitation circuit
- Drive motor a
- Hybrid control module
Common causes
- High likelihood: Excitation winding short
- Medium likelihood: Driver fault
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.