Pathfinder LE 4WD V6-3.3L (VG33E) (1997)
Intake Air Temperature Sensor: Description and Operation
COMPONENT DESCRIPTION
The intake air temperature sensor is mounted to the air duct housing. 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
*:These data are reference values and are measured between ECM terminal (28) (Intake air temperature sensor) and ECM terminal (43) (ECCS
ground).