P0A82Hybrid/EV Battery Pack Cooling Fan 1 Performance/Stuck Off
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- This code covers a fan 1 that is electrically intact but does not deliver the requested cooling, up to standing still. No manufacturer publishes code-exact criteria; CARB requires a functional check of battery cooling where feasible. Typical methods: GM compares commanded and fed-back fan speed (filed under its own sense code P0BC8), Toyota flags a fan whose feedback-corrected duty deviates too far from the expected value, and Honda compares expected and measured battery temperature rise. Causes are mostly mechanical: dust on the blades, a clogged intake filter, worn bearings. Circuit faults use P0A81/P0A84/P0A85; the stuck-on case is P0A83. The pack runs hotter and power may be limited.
- What you may notice
- Hybrid warning or check engine light
- Fan audibly weak or silent under load
- Reduced electric assist in warm weather
- Likely causes
- LikelyDust or debris on fan blades or in the duct
- LikelyClogged or covered battery air intake or filter
- PossibleWorn or seized fan motor bearings
- RareFaulty fan speed feedback signal
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.