Drive Motor "A" Phase Z Current High
Phase Z current of drive motor A exceeds the expected window. Indicates phase short, stalled rotor, or sensor offset.
Affected components
- Drive motor a
- Drive motor a phase z
- Inverter
Common causes
- High likelihood: Short between motor phases
- Medium likelihood: Rotor stalled - high stall current
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.