Air Temperature Sensor ( Ambient / Intake ): Description and Operation

DESCRIPTION
The intake air temperature sensor is built into the air cleaner. The sensor detects intake air temperature and transmits a signal to the ECM.
The temperature sensing unit employs a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decrease 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.