INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [MZR-CD 2.2]

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IAT Sensor

Resistance inspection

Note

•  Because the IAT sensor is integrated in the MAF sensor, replacing the IAT sensor includes replacement of the MAF/IAT sensor.

1.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

2.  Disconnect the MAF/IAT sensor connector. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

3.  Measure the resistance between MAF/IAT sensor terminals D and E.

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•  If not as specified, replace the MAF/IAT sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

IAT sensor characteristics graph (Reference)

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IAT Sensor No.2

Note

•  Perform the following test only when directed.

Visual inspection

1.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

2.  Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZR-CD 2.2].)

3.  Disconnect the IAT sensor No.2 connector.

4.  Remove the IAT sensor No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

5.  Visually inspect the IAT sensor No.2 for the following:

•  Dirt, damage, cracks

•  Rusted sensor terminal

•  Bent sensor terminal

―  If there is any malfunction, repair or replace the IAT sensor No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

Resistance inspection

1.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

2.  Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZR-CD 2.2].)

3.  Disconnect the IAT sensor No.2 connector.

4.  Remove the IAT sensor No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

5.  Place the IAT sensor No.2 in water with a thermometer, and heat the water gradually.

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

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•  If not as specified, replace the IAT sensor No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)