Air Temperature Sensor Test
- Disconnect battery terminals and air temperature sensor connector. Connect an ohmmeter between sensor terminals. Ohmmeter reading should vary with temperature. See Air Temperature Sensor Resistance table.
- Check resistance between sensor body and each of the terminals. Resistance should be high or infinite. If sensor does not meet specifications, replacement is required.
AIR TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 14 (-10) | 960 |
| 32 (0) | 640 |
| 50 (10) | 435 |
| 68 (20) | 300 |
| 86 (30) | 210 |
| 104 (40) | 150 |
| 122 (50) | 108 |
| 140 (60) | 80 |