D21 Hardbody XE 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
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Intake Air Temperature Sensor: Description and Operation
COMPONENT DESCRIPTION
The intake air temperature sensor is mounted to the air duct. 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 temperature rise.
This sensor is not used to control the engine system. It is used only for the on board diagnosis.
<Reference Data>
Intake air temperature °C (°F) / Voltage* (V) / Resistance K Ohms
20 (68) / 3.5 / 2.1 - 2.9
80 (176) / 1.23 / 0.27 - 0.38
