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.
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5].)
2. Disconnect the MAF sensor/IAT sensor No.1 connector.
3. Remove the MAF sensor/IAT sensor No.1.
4. Install in the reverse order of removal.