Intake Air Temperature Sensor
WARNING: This page is about a different car, the 2016 Infiniti QX80. However, it is still accessible from the selected car via links, so may be relevant.
The intake air temperature (IAT) sensor is built-into the mass air flow sensor. The sensor detects intake air temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the rise in temperature.
<Reference data>
| Intake air temperature [°C (°F)] |
Voltage*(V) | Resistance (kΩ) |
|---|---|---|
| 25 (77) | 3.3 | 1.94 - 2.06 |
| 80 (176) | 1.2 | 0.293 - 0.349 |
*: These data are reference values and are measured between ECM terminals.