Intake Air Temperature (IAT) Sensor
IAT sensor is located inside of Mass Airflow (MAF) Sensor. Disconnect MAF sensor connector. Measure resistance between terminals No. 1 (Blue/Green wire) and No. 3 (Black/Red wire) at MAF sensor. See INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE . If resistance is not as specified, replace MAF sensor.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| Measure Between Terminals | Ohms | |
|---|---|---|
| No. 1 (Blue/Green) & No. 3 (Black/Red) | ||
| 140°F (60°C) | 493-667 | |
| 68°F (20°C) | 2210-2690 | |
| -4°F (-20°C) | 13,600-18,400 | |