Inlet Air Temperature Sensor 2
Indicates an issue with Inlet Air Temperature Sensor 2.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer is not getting the right temperature reading from Inlet Air Temperature Sensor 2, which can affect how the engine runs.
What the computer is actually seeing
The engine control module expects a voltage signal from the sensor that typically varies between 0.5V (cold) and 4.5V (hot).
What a healthy reading looks like
Inlet Air Temperature should typically read between -40°C to +150°C, with a linear voltage output corresponding to the temperature.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connectors for the Inlet Air Temperature Sensor 2 for damage or corrosion. If any issues are found, repair them and clear the code.
- 22. Measure the resistance of the Inlet Air Temperature Sensor 2 at ambient temperature. It should typically be around 2.5k ohms. If it’s out of spec, replace the sensor.
- 33. Check the voltage at the sensor connector with the engine running. It should range from 0.5V to 4.5V. If voltages are outside this range while the sensor is connected, check the wiring and ECU.
- 44. If the sensor and wiring check out, connect a diagnostic scanner to monitor the Inlet Air Temperature live data while running. If readings are erratic or out of expected range despite a good sensor, suspect ECU issues.
Common causes
- Faulty Inlet Air Temperature Sensor 2
- Wiring issues or damaged connectors
- Air intake leaks
- Faulty ECU
- Thermal issues with the air intake system
Typical repair cost
$$ - $$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's moderate severity; you can drive but should address it soon to prevent performance issues.
Will this error code come back after clearing?
If the issue isn't fixed, yes, it will likely return.
Why might this code be paired with others?
Multiple codes can indicate a broader issue in the air intake system or sensor circuit.
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