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P0113 Intake Air Temperature (IAT) Sensor Circuit High

What it means

The intake air temperature sensor signal is too high — usually an unplugged sensor or open circuit. On many cars the IAT is built into the MAF.

Severity: Low

Can I drive it? Safe to drive; minor effects on drivability and mileage.

Common causes (most likely first)

Unplugged or damaged IAT connector
Faulty IAT sensor (or MAF with built-in IAT)
Open wiring

Likely fixes

Check connector (often left unplugged after air filter change)
Replace IAT sensor or MAF assembly

DIY parts cost

$15–$200

Approximate estimate

Shop repair cost

$80–$350

Approximate estimate, parts + labor

DIY difficulty

Easy

Varies by vehicle

Cost ranges are rough, approximate U.S. estimates and vary widely by vehicle, region, and parts brand. Always confirm the diagnosis before buying parts.

Parts you may need

Intake air temperature sensorCheck price
MAF sensorCheck price

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