Drive Motor A Position Sensor Range/Performance
The drive motor A rotor position signal is implausible relative to motor speed and torque commands, indicating drift or alignment fault.
Affected components
- Drive motor a
- Rotor position sensor
Common causes
- High likelihood: Resolver alignment off
- Low likelihood: Sensor element aged beyond calibration window
- Low likelihood: Sensor mounting loose - signal damping
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
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.