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