P0113

Intake Air Temperature (IAT) Sensor Circuit High Input

Q: What does fault code P0113 mean?

Intake Air Temperature (IAT) Sensor Circuit High Input. The ECM has detected that the IAT sensor signal voltage is too high (near reference voltage), typically indicating an open circuit.

Q: What are the possible causes of P0113?

IAT sensor internal open circuit (thermistor open); Sensor signal wire open; Sensor connector not connected or poor contact.

Severity: Low Fuel & Air Metering Generic Code

Detailed Description

The ECM has detected that the IAT sensor signal voltage is too high (near reference voltage), typically indicating an open circuit.

Possible Causes

IAT sensor internal open circuit (thermistor open)

Sensor signal wire open

Sensor connector not connected or poor contact.

Solutions & Repair Guide

Disconnect the sensor connector and measure resistance between sensor terminals — if infinite, the sensor is damaged and needs replacement; If the sensor is normal, check the wiring harness for an open circuit.

Disclaimer: The information above is for reference only and does not constitute professional repair advice. Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.