Drive Motor A Position Sensor Circuit B Range/Performance
The position sensor channel B of drive motor A reports a range/performance fault. Phase commutation feedback impaired on this channel.
Affected components
- Drive motor a position sensor b
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Sensor mechanically offset
- Medium likelihood: Electrical noise on signal line
- Low likelihood: Sensor element aged beyond calibration window
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.