Powertrain
generic / SAE
P0A7E
Hybrid Battery Pack Overtemperature
BMS detects HV pack temperature above the safe operating limit, triggering thermal protection mode and limiting charge/discharge.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 7E
Possible causes
- Cooling fan or pump failure high
- Extreme ambient temperature medium
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: shop only
- DIY: shop recommended
- Estimated cost: 400–3000 €
- Estimated time: 2–8 h
- Component: hv battery
- Component: battery cooling fan
- Component: bms
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012