P0DAE
Hybrid/EV Battery Cell Balancing Circuit A Stuck Off
The cell balancing circuit A reports a stuck off condition. Cell-group voltage equalization may be impaired on this channel.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Common causes
Ordered by how often each turns out to be the cause.
- Balancing transistor openCommon
- Driver IC failurePossible
- Carbon or debris buildup preventing free movementLess likely
Parts involved
- Hv Battery Cell Balancing Circuit A
- Bms
P0DAE is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.