Component Description

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The intake air temperature sensor is built into the mass air flow sensor (1). The sensor detects intake air temperature and transmits a signal to the ECM.

Fig 1: Identifying Intake Air Temperature Sensor

Courtesy of SUZUKI OF AMERICA CORP.

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.

Fig 2: Resistance And Temperature Graph

Courtesy of SUZUKI OF AMERICA CORP.

< Reference data >

TEMPERATURE AND RESISTANCE CHART

Intake air temperature [°C (°F)]

Voltage⁽¹⁾ (V)

Resistance (kΩ)

25 (77)

3.3

1.800 - 2.200

80 (176)

1.2

0.283 - 0.359

⁽¹⁾	This data is reference value and is measured between ECM terminal 34 (Intake air temperature sensor) and ground.