P0A97Hybrid/EV Battery Pack Cooling Fan 2 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
- P0A97 is the fan 2 counterpart of P0A82: the second battery cooling fan is electrically reachable but does not reach its requested speed or does not turn at all. No manufacturer documents this exact code publicly. CARB requires a functional check of battery cooling where feasible, and the methods are published for fan 1: GM compares commanded and measured speed (its sense code P0BC8), Toyota judges the deviation of the feedback-corrected duty, Honda compares expected and actual battery temperature rise. Blocked air paths and worn motors are the usual causes. Circuit faults on fan 2 are P0A96, P0A99 and P0A9A; the stuck-on case is P0A98. With one fan weak the pack runs warmer.
- What you may notice
- Hybrid warning or check engine light
- Weak airflow from the battery vents
- Reduced electric assist in warm weather
- Likely causes
- LikelyDust or debris on fan 2 or in its duct
- PossibleWorn or seized fan 2 bearings
- PossibleBlocked air intake to the battery
- RareFaulty speed feedback from fan 2
- 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 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.