P0AB0: Hybrid/EV Battery Pack Air Temperature Sensor A Circuit Intermittent/Erratic
What to do
Note the pattern of appearances and pass it on, as with every intermittent in this block.
What this code means
The intake air temperature signal is cutting in and out — air temperature cannot step, so the jumps convict the wiring. The connector in the cooling ducting is the usual find.
Likely causes
Start here
- Intermittent wiring fault · moderate
- Corroded or loose connector · easy
Less common
- Water ingress into 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
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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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