INTAKE AIR TEMPERATURE (IAT) SENSOR [SKYACTIV-G 1.3, SKYACTIV-G 1.5]

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IAT Sensor No.1

Purpose/Function

•  Detects the IAT before it passes through the throttle body as basic information (mainly used to determine the fuel injection amount) and sends it to the PCM as an IAT signal.

Construction

•  Built into the MAF sensor.

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•  A thermistor has been adopted (as the detecting element) for detecting the IAT.

Operation

IAT sensor No.1 (5 pin type)

•  Sends the signal, which fluctuates according to the IAT (after passing through the air cleaner), to the PCM.

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IAT sensor No.1 characteristic

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IAT sensor No.1 (3 pin type)

•  Sends a signal to the PCM via SENT communication which fluctuates according to the intake airflow amount just after it passes through the air cleaner.

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Fail-safe

DTC No.	Fail-safe function
P0112:00	•  Fixes the intake air temperature (for engine control) at 20 °C {68 °F}. •  Inhibits the fuel cut control during shift change.
P0113:00	•  Fixes the intake air temperature (for engine control) at 20 °C {68 °F}. •  Inhibits the fuel cut control during shift change.

IAT Sensor No.2

Purpose/Function

•  Detects the IAT (in intake manifold) after it passes through the throttle body as basic information (mainly used to determine the fuel injection amount) and sends it to the PCM as an intake air temperature signal.

Construction

•  Built into the MAP sensor.

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•  A thermistor has been adopted (as the detecting element) for detecting the IAT.

Operation

•  Sends the signal, which fluctuates according to the IAT (in the intake manifold), to the PCM.

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IAT sensor No.2 characteristic

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Fail-safe

•  Not applicable