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INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-X 2.0]

INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-X 2.0]

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IAT Sensor No.1

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.

Function inspection

1.  Connect the M-MDS to the DLC-2.

2.  Switch the ignition ON (engine off).

3.  Display the PID IAT. (See PID/DATA MONITOR INSPECTION.)

4.  Compare the voltage and temperature indications for the PID IAT with the standard in the table indicated below.

•  If they do not match the standard, replace the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

Standard

IAT

V

°C {°F}
Approx. 2.70
20 {68}
Approx. 1.80
40 {104}
Approx. 1.20
60 {140}


IAT Sensor No.2

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.

Resistance inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2.  Remove the MAP sensor/IAT sensor No.2. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR No.2 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

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

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•  If not as specified, replace the MAP sensor/IAT sensor No.2. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR No.2 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

Specification

IAT (°C {°F})

Resistance (Kilohms)
-40 {-40}
Approx. 46.08
20 {68}
2.401—2.685
80 {176}
0.3186—0.3416
130 {266}
Approx. 0.098

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