INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [G6]
id014095802200
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Note
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• Perform the following test only when directed.
1. Remove the IAT sensor.
2. Heat the IAT sensor using the lamp.
3. Measure the resistance of the IAT sensor.
Specification
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Water temperature
(°C {°F})
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Resistance (kilohm)
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20 {68}
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28—38
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80 {176}
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3.1—3.9
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• If not as specified, replace the IAT sensor.
• If there is no malfunction, but PID valve is out of specification, inspect as follows and repair or replace as necessary.
Open circuit
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― IAT signal circuit (IAT sensor connector terminal A and PCM connector terminal 2L)
― GND circuit (IAT sensor connector terminal B and PCM connector terminal 2D)
Short circuit
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― IAT signal circuit (IAT sensor connector terminal A and PCM connector terminal 2L to GND)
4. Reconnect the IAT sensor connector.