Intake Air Temperature (IAT) Sensor
Unplug IAT sensor 2-wire connector, located on throttle body. Measure resistance between sensor terminals at specified temperatures. See INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE table. Replace IAT sensor if resistance is not as specified.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| -4 (-20) | 15,000-18,000 |
| 68 (20) | 2000-4000 |
| 176 (80) | 300-400 |