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Home >> Mazda >> 2015 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Intake Air Temperature (IAT) Sensor Inspection >> Resistance Inspection
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Resistance Inspection

  1. Remove the battery cover.
  2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] ).
  3. Disconnect the MAF/IAT sensor connector.
  4. Verify that the resistance between MAF/IAT 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/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION ).
      Fig 1: Identifying MAF/IAT Sensor Connector Terminals
      G06151075Courtesy of MAZDA MOTORS CORP.
STANDARD

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