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INTAKE AIR TEMPERATURE SENSOR (IAT)
GENERAL
The intake air temperature sensor (IAT Sensor), located on
the air cleaner cover baseplate, measures the air temperature
allowing the ECM to calculate the density of the air entering
the manifold. The IAT is a thermistor type sensor.
REMOVAL
To prevent accidental vehicle start-up, which could cause
death or serious injury, disconnect negative (-) battery
cable before proceeding. (00048a)
1.
Disconnect negative battery cable.
2.
See
Figure
4-25. Remove air cleaner cover and filter.
3.
Remove fasteners securing base. See
ASSEMBLY.
4.
Raise base and pull IAT sensor from sensor grommet.
5.
Disconnect connector [89] from intake air temperature
sensor.
6.
Inspect sensor grommet for damage and replace as
required.
4-18 2009 XB Service: Fuel System
INSTALLATION
1.
Connect IAT sensor connector [89] to wiring harness.
2.
Install IAT sensor into grommet on air cleaner base from
beneath.
3.
Install air cleaner cover. See
ASSEMBLY.
4.
Connect negative battery cable, tightening to 72-96 in-lbs
(8-11 Nm).
sm00243
4.3 AIR CLEANER
Figure 4-25. Intake Air Temperature Sensor Installed
4.10
4.3 AIR CLEANER
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