OBD-II code · Powertrain (generic)
P0AD1 Hybrid/EV Battery Pack Cooling Fan 3 Stuck On
The HV battery pack cooling fan 3 reports a stuck on condition. Battery thermal management is impaired.
Is it safe to drive with P0AD1?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyRelay contacts welded
- PossibleDriver stuck on
- 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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Cooling Fan 3, Wiring Harness, Bms
Related codes
- P0ACEHybrid/EV Battery Temperature Sensor C Circuit Intermittent/Erratic
- P0ACFHybrid/EV Battery Pack Cooling Fan 3 Control Circuit/Open
- P0AD0Hybrid/EV Battery Pack Cooling Fan 3 Performance/Stuck Off
- P0AD2Hybrid/EV Battery Pack Cooling Fan 3 Control Circuit Low
- P0AD3Hybrid/EV Battery Pack Cooling Fan 3 Control Circuit High
- P0AD4Hybrid/EV Battery Pack Air Flow System Insufficient Air Flow
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.