Hybrid/EV Battery Pack L Deterioration
The BMS detects accelerated deterioration in battery pack subsection L. Cell voltage delta, internal resistance, or capacity has dropped below threshold for the affected sub-pack.
Affected components
- Hybrid battery pack l
- Bms
Common causes
- High likelihood: Cells aged beyond compensation
- Medium likelihood: Thermal stress shortened cell life
- 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.