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Home >> Mazda >> 2007 >> 3 i, 2.0 F, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (LF, L3) >> Intake Air Temperature (IAT) Sensor Inspection >> Resistance Inspection
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Resistance Inspection

  1. Disconnect the mass air flow sensor connector.
  2. Verify that the resistance between MAF sensor terminals D and E is within the specification.
    • If the monitor item status/specification (reference) is not within the specification, even though the IAT sensor resistance is within the specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
    • If not within the specification, replace the MAF sensor.
      Fig 1: Identifying Intake Air Temperature Sensor Connector Terminals
      G04955236Courtesy of MAZDA MOTORS CORP.

    Standard 

    AMBIENT TEMPERATURE AND RESISTANCE SPECIFICATION

    Ambient temperature (°C{°F}) Resistance (kilohm)
    -20 {-4.0} 13.6-18.4
    20 {68} 2.21-2.69
    60 {140} 0.493-0.667