Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Nissan-Datsun >> 2004 >> Frontier Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System - VG33E) >> DTC P0127: IAT Sensor >> Component Description

Component Description

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

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.

Fig 1: Locating Intake Air Temperature Sensor
G00742772Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Reference Data
G00742773Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Resistance/Temperature Chart
G00742774Courtesy 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 the ECM terminals, such as the ground.