Intake Air Temperature Sensor
Disconnect airflow sensor connector. Check intake air temperature sensor by measuring resistance between terminals No. 4 (Green/Brown wire on 1.5L and 2.4L, Green/Black wire on 3.0L) and No. 6 (Black wire). See Figure . Using a hair dryer, warm intake air temperature sensor while watching ohmmeter. Resistance value should change evenly as temperature rises. Replace airflow sensor assembly if resistance is not within specification, or values do not change while warming sensor. See INTAKE AIR TEMPERATURE SENSOR RESISTANCE table.
INTAKE AIR TEMPERATURE SENSOR RESISTANCE
| Temperature °F (C) | Ohms |
|---|---|
| 32 (0) | 5400-6600 |
| 68 (20) | 2330-2970 |
| 176 (80) | 310-430 |