A3 L4-2.0L Turbo (BPY) (2006)
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Disconnect the Intake Air Temperature (IAT) Sensor 2 G299 electrical harness connector - arrow -.
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Using a multimeter , check the Intake Air Temperature (IAT) Sensor 2 G299 terminals 1 to 2 for resistance.
Use the chart below for the specified values:
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Area A: Resistance values 0 to 50 degrees C.
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Area B: Resistance values 50 to 100 degrees C.
Specified values:
Read-out examples:
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Range A, 30 degrees C equals a resistance of 1.5 to 2.0 k Ohms
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Range B, 80 degrees C equals a resistance of 275 to 375 Ohms
If any of the specified values are not obtained:
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Replace the Intake Air Temperature (IAT) Sensor 2 G299.
Testing if display approx. -40 degrees C or approx. -46 degrees C:
