Code result

P0112

Intake Air Temperature Circuit Low Input

Moderate severity

What it means

The IAT signal voltage is below threshold, which the ECU interprets as an implausibly hot intake (low NTC resistance). Usually a wiring short to ground or a failed sensor.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Signal wire shorted to ground

    high

    One of the most commonly reported causes for this code — check this first.

  • Sensor failed shorted internally

    medium

    A plausible cause — test and verify before replacing parts.

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