Intake Air Temperature Sensor 1 Performance
The engine control module detects a problem with the intake air temperature sensor.
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 car's computer thinks the air temperature sensor is not reading properly, which can mess with the engine's air-fuel mix.
What the computer is actually seeing
The engine control module monitors the intake air temperature sensor and expects a voltage signal between 0.5V and 4.5V that corresponds to temperatures from -40°C to +125°C (-40°F to +257°F). If the signal is out of range, it triggers this code.
What a healthy reading looks like
Intake air temperature should be between -40°C (-40°F) and +125°C (+257°F); expected voltage signal from the sensor is between 0.5V and 4.5V.
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 to the intake air temperature sensor for damage or corrosion. Fix any issues found. Decision: Is wiring intact? Yes - go to step 2, No - repair wiring and retest.
Common causes
- Faulty intake air temperature sensor
- Wiring issues or damaged connectors
- Faulty engine control module (ECM)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but engine performance may suffer, and emissions can increase.
Will this code come back after I clear it?
It might if the underlying issue is not fixed.
Why does this code appear with other codes?
Faulty readings can often lead to multiple diagnostic trouble codes related to air intake or temperature sensors.
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