Powertrain
generic / SAE
P0AE2
Hybrid/EV Battery Precharge Contactor Circuit Stuck Closed
The HV battery precharge contactor is stuck in the closed position. Risk of damage to precharge resistor from sustained current.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / E2
Possible causes
- Contacts welded closed high
- Driver stuck on medium
- Carbon or debris buildup preventing free movement 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: 400–2500 €
- Estimated time: 2–8 h
- Component: hv battery precharge contactor
- Component: precharge resistor
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012