FixVault

Intake Air Temperature Sensor

WARNING: This page is about a different variant/trim than selected.

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.

< Reference data > 

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) These data are reference values and are measured between ECM terminals.
Fig 1: Sensor Resistance Versus Temperature Graph (Acceptable)
G08428740Courtesy of NISSAN NORTH AMERICA, INC.