P0113: Intake Air Temperature Sensor 1 Circuit High Input
System: Air temperature · Priority: low
What P0113 means
The control module detected a condition matching the generic definition Intake Air Temperature Sensor 1 Circuit High Input. A trouble code identifies what the module detected; it does not automatically identify the failed part.
Useful next checks
- Inspect the IAT connector and wiring for an open circuit.
- Compare intake-air temperature to ambient temperature on a cold engine.
- If integrated with the MAF, inspect the shared connector carefully.
Why vehicle context matters
The same generic code can have different diagnostic paths depending on engine, calibration, wiring layout, service bulletins and related codes. Freeze-frame and live data can help establish when the fault occurred.
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