INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [MZI-3.7]

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  Note
  • The MAF sensor and IAT sensor cannot be removed as a single unit. When replacing the MAF sensor or IAT sensor, replace it together with the MAF/IAT sensor as a single unit.

Resistance Inspection

1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

2. Disconnect the MAF/IAT sensor connector.

3. Measure the resistance between MAF/IAT sensor terminals A and F.

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  • If not within the specification, replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION [MZI-3.7].)

IAT sensor resistance

IAT (°C {°F}) | Resistance (kilohm)
--- | ---
10 {50} | Approx. 58.75
20 {68} | Approx. 37.30
30 {86} | Approx. 24.27
60 {140} | Approx. 7.70

IAT sensor characteristics graph (reference)

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