Resistance Inspection

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the MAF/IAT sensor connector.
Measure the resistance between MAF/IAT sensor terminals A and F.
- 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] .
  
  Fig 1: Identifying MAF/IAT Sensor Connector
  Courtesy of MAZDA MOTORS CORP.

IAT sensor resistance

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)

Fig 2: IAT Sensor Characteristics Graph (Reference)

Courtesy of MAZDA MOTORS CORP.