Drive Motor A Excitation Current Sensor Circuit
The drive motor A excitation current sensor circuit reports a generic fault. Field excitation current measurement is unreliable.
Affected components
- Drive motor a excitation current sensor
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Excitation current sensor failed
- Medium likelihood: Wiring 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.