Hybrid/EV Battery Voltage/Drive Motor A Inverter Voltage Correlation
The signals of the HV battery voltage and drive motor A inverter voltage do not correlate within the calibrated tolerance.
Affected components
- Hv battery voltage sensor
- Drive motor a inverter voltage sensor
- Hybrid control module
Common causes
- High likelihood: One sensor characteristic drifted
- Medium likelihood: Ground offset between channels
- Low likelihood: Pack cell imbalance approaching service threshold
Possible symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
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.