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Home >> Mazda >> 2020 >> CX-9 Touring, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Intake Air Temperature (IAT) Sensor Inspection >> IAT Sensor No. 1 >> Resistance Inspection

Resistance Inspection

NOTE:
  • The MAF sensor and IAT sensor No. 1 cannot be removed as a single unit. When replacing the IAT sensor No. 1, replace the MAF sensor/IAT sensor No. 1.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Disconnect the MAF sensor/IAT sensor No. 1 connector.
  3. Measure the resistance between MAF sensor/IAT sensor No. 1 terminals A and B.
    G11436114Courtesy of MAZDA MOTORS CORP.
    RESISTANCE SPECIFICATION

    IAT (°C {°F}) Resistance (Kilohms)
    -20 {-4} 13.7-16.6
    20 {68} 2.49-2.79
    60 {140} 0.622-0.703
    G11436115Courtesy of MAZDA MOTORS CORP.
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