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Home >> Nissan-Datsun >> 2005 >> Altima Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System - Qr25DE >> DTC P0127: IAT Sensor >> Component Inspection >> Intake Air Temperature Sensor
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Intake Air Temperature Sensor

  1. Check resistance between intake air temperature sensor terminals 5 and 6 under the following conditions.
    INTAKE AIR TEMPERATURE SENSOR TERMINALS RESISTANCE REFERENCE

    Intake air temperature °C (°F) Resistance kΩ
    25 (77) 1.9 - 2.1
  2. If NG, replace mass air flow sensor (with intake air temperature sensor).
Fig 1: Locating Intake Air Temperature Sensor
G02524947Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Resistance And Temperature Graph
G02524948Courtesy of NISSAN MOTOR CO., U.S.A.