Air Temperature Sensor (Swift SOHC)
- Disconnect air temperature sensor connector. Turn ignition on. Check voltage between Gray wire terminal and ground. If voltage is not 4-5 volts, check sensor resistance or wiring harness for open or short.
- Remove air temperature sensor and place it in water with a thermometer. Heat water to specified temperature and check resistance. See the AIR TEMPERATURE SENSOR RESISTANCE table. Replace air temperature sensor if resistance is not within specification.
AIR TEMPERATURE SENSOR RESISTANCE
| Application | Ohms | |
|---|---|---|
| Swift SOHC | ||
| 68°F (20°C) | 2210-2690 | |
| 176°F (80°C) | 290-350 | |