Powertrain
generic / SAE
P0C30
Hybrid/EV Battery Pack State of Charge High
The BMS detects that the HV battery pack state of charge exceeds the safe upper limit. Regenerative braking may be limited to prevent overcharge.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / 30
Possible causes
- SoC estimation drifted high high
- Regen braking strategy off-target 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: medium
- DIY: shop recommended
- Estimated cost: 100–800 €
- Estimated time: 0.5–4 h
- Component: hv battery pack
- Component: bms
- MIL / check engine light
- drive cycle required
Sources
References
sae:J2012