Hybrid/EV Battery Pack B Cell Thickness
The BMS detects abnormal cell thickness in HV battery pack B. Cell swelling indicates aging, thermal stress, or imminent failure.
Affected components
- Hybrid battery pack b
- Hybrid battery pack b thickness sensor
- Bms
Common causes
- High likelihood: Cells aged - swelling
- Medium likelihood: Thermal stress damaged cells
- 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
- A drive cycle may be required after repair
- 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.