Resistance inspection

NOTE:

Because the IAT sensor No. 1 is integrated in the MAF sensor, replacing the IAT sensor No. 1 includes replacement of the MAF sensor/IAT sensor No. 1.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
Disconnect the MAF sensor/IAT sensor No. 1 connector.
Measure the resistance between MAF sensor/IAT sensor No. 1 terminals A and B.

Fig 1: Locating MAF Sensor/IAT Sensor No. 1 Terminals A And B
Courtesy of MAZDA MOTORS CORP.
- If not as specified, replace the MAF sensor/IAT sensor No. 1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR No. 1 REMOVAL/INSTALLATION .)

Specification (Reference)

Fig 2: Intake Air Temperature Sensor Resistance Graph

Courtesy of MAZDA MOTORS CORP.