Component Description

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

The intake air temperature sensor is built into 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 temperature rise.

Fig 1: Identifying Intake Air Temperature Sensor Position Into Mass Air Flow Sensor

Courtesy of NISSAN MOTOR CO., U.S.A.

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Fig 2: Intake Air Temperature Sensor Voltage Resistance Specifications

Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Fig 3: Temperature - Resistance Graph (IAT)

Courtesy of NISSAN MOTOR CO., U.S.A.