INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION[AJ (3.0L Duratec)]
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Resistance Inspection
1. Disconnect the MAF/IAT sensor connector.
2. Measure the resistance between MAF/IAT sensor terminals A and F.
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IAT sensor resistance
IAT (°C {°F}) |
Resistance (kilohm) |
---|---|
10 {50}
|
Approx. 58.75
|
20 {68}
|
Approx. 37.30
|
30 {86}
|
Approx. 24.27
|
60 {140}
|
Approx. 7.70
|
IAT sensor characteristics graph (reference)
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Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)
2. Inspect the following wiring harness for open or short (continuity check).
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Open circuit
Short circuit