OBD-II code · Powertrain (generic)
P0AE3 Hybrid/EV Battery Precharge Contactor Circuit Stuck Open
The HV battery precharge contactor is stuck in the open position. DC-link cannot be precharged before main contactor closure.
Is it safe to drive with P0AE3?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyContactor mechanically failed open
- PossibleContactor coil burnt out
- Less likelyCarbon or debris buildup preventing free movement
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Precharge Contactor
Related codes
- P0AE0Hybrid/EV Battery Negative Contactor Control Circuit High
- P0AE1Hybrid/EV Battery Precharge Contactor Circuit
- P0AE2Hybrid/EV Battery Precharge Contactor Circuit Stuck Closed
- P0AE4Hybrid/EV Battery Precharge Contactor A Control Circuit/Open
- P0AE5Hybrid/EV Battery Precharge Contactor A Control Circuit Range/Performance
- P0AE6Hybrid/EV Battery Precharge Contactor A Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.