Engine Intake Air Temperature Sensor 2
This code indicates an issue with the intake air temperature sensor 2 reading.
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 engine has two temperature sensors for the intake air, and sensor 2 is reading an abnormal temperature that the engine computer doesn't expect. Typically, normal operation should show a reading between 30°F and 180°F (or around 0°C to 80°C).
What the computer is actually seeing
The engine control module (ECM) sees a voltage signal from the sensor that varies based on air temperature. A typical sensor sends a voltage between 0.5V (cold) and 4.5V (hot). If the signal is outside of these thresholds or stays constant when it shouldn't, the code triggers.
What a healthy reading looks like
Expected voltage range from intake air temperature sensor 2 is between 0.5V and 4.5V; temperature readings should be between 30°F and 180°F.
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 wiring and connectors for intake air temperature sensor 2 for damage or corrosion. Fix any found issues. Decision Point: If wiring is intact, proceed to step 2. If damaged, repair and retest.
Common causes
- Faulty intake air temperature sensor 2
- Wiring issues or connector problems to the sensor
- Air intake system leaks or blockages
- ECM software issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity, so while you can drive, you should fix it soon to avoid potential performance issues.
Will this code come back after repair?
If the repair resolves the root cause like a faulty sensor or wiring issue, it shouldn't come back.
Why does this code pair with others?
It's common for multiple codes to trigger due to the shared systems and sensors in the intake air management.
Working a real vehicle right now?
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