P0112 2014 Toyota RAV4 Code - Intake Air Temperature Circuit Low Input

P0112 indicates that the intake air temperature (IAT) sensor is reporting a voltage signal lower than expected, suggesting an abnormally low air temperature reading.

Symptoms may include poor engine performance, decreased fuel efficiency, rough idling, and possibly an illuminated check engine light.

Common causes include a faulty IAT sensor, damaged or corroded wiring, a short circuit, or a malfunctioning engine control module (ECM).

While the vehicle may still be drivable, continued operation with this code can lead to decreased performance and potential damage to other components over time.

Inspect and repair any damaged wiring or connectors, clean or replace the IAT sensor if necessary, and reset the code to see if the issue persists.

The IAT sensor is typically located on or near the air intake system, often attached to the air filter housing or intake manifold.

Use a multimeter to measure the sensor's resistance or voltage. Compare the readings to the manufacturer's specifications to determine if the sensor is functioning properly.

A dirty air filter is unlikely to directly cause the P0112 code but can contribute to airflow issues that may exacerbate other intake system problems.

Repair costs can vary. Replacing an IAT sensor typically costs between $50 and $150, while wiring repairs may cost more depending on the extent of the damage.

Yes, a faulty IAT sensor can negatively impact the air-fuel mixture, potentially increasing emissions and causing the vehicle to fail an emissions test.