Resistance inspection

NOTE:

Because the IAT sensor No. 2 is integrated in the MAP sensor, replacing the IAT sensor No. 2 includes replacement of the MAP sensor/IAT sensor No. 2.

Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the MAP sensor/IAT sensor No. 2. (Refer to MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 2 REMOVAL/INSTALLATION .)

Measure the resistance between MAP sensor/IAT sensor No. 2 terminals A and B.

Fig 1: Locating MAF Sensor/IAT Sensor Terminals

Courtesy of MAZDA MOTORS CORP.

Specification (Reference)

Fig 2: IAT Resistance/Temperature Graph

Courtesy of MAZDA MOTORS CORP.