Powertrain
generic / SAE
P0DAB
Hybrid/EV Battery Cell Balancing Performance
The BMS detects that overall cell balancing performance is below expectation. Multi-cell imbalance increases despite balancing efforts.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberD / AB
Possible causes
- Multiple balancing circuits aged high
- Cells severely aged - capacity spread medium
- Pack cell imbalance approaching service threshold low
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 800–5000 €
- Estimated time: 4–16 h
- Component: hv battery pack
- Component: bms
- Component: cell balancing circuits
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012