Powertrain
generic / SAE
P0B25
Hybrid/EV Battery A Voltage Low
The voltage of HV battery A is below the expected window. Cell-group depleted, deeply aged, or sense fault.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberB / 25
Possible causes
- Cells in group aged - capacity reduced high
- Deep discharge event 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: 500–5000 €
- Estimated time: 3–16 h
- Component: hv battery a
- Component: bms
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012