Powertrain
generic / SAE
P0CA5
Hybrid/EV Battery Discharging Voltage High
The HV battery discharging voltage exceeds the expected window. Open circuit voltage too high under load.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / A5
Possible causes
- State of charge near full high
- Regen braking overshoot 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: 500–4000 €
- Estimated time: 3–14 h
- Component: hv battery
- Component: bms
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012