P0AAD: Hybrid/EV Battery Pack Air Temperature Sensor A Circuit Range/Performance
What to do
Symptomless as a rule; worth fixing when convenient.
What this code means
The intake air temperature reading is alive but implausible — easy to catch here, because the cabin's own temperature sensor reads the same air and the two should broadly agree. Context at P0AAC.
Likely causes
Start here
- Faulty battery temperature sensor · moderate
- Sensor drifted out of calibration · moderate
Less common
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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