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INTAKE AIR TEMPERATURE (IAT) SENSOR CONSTRUCTION/OPERATION

BHE014018840T04

• Installed on the air hose.

1 | MAF/IAT sensor
2 | Illustration shows 13B-MSP (High power)

• Built into the MAF sensor.

1 | MAF/IAT sensor
2 | Illustration shows 13B-MSP (High power)

• A thermistor type is used and the resistance changes according to the IAT.

• As shown in the characteristics graph, when the IAT is high, the resistance is low, and when the IAT is low, the resistance is high.

IAT Sensor Characteristics

1 | IAT sensor
2 | PCM
3 | CPU
4 | Resistance (kilohm)
5 | IAT