A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
Intake Air Temperature Sensor: Testing and Inspection
Intake Air Temperature Sensor, Checking
The Intake Air Temperature (IAT) Sensor (G42) and the Manifold Absolute Pressure (MAP) Sensor ( G71) are integrated into one unit and cannot be
serviced separately.
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram
Test requirements
‹› Fuses for engine electronics OK.
‹› Battery voltage at least 12.5 V.
‹› The ignition switched off.
Checking function
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Connect the scan tool.
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Switch the ignition on.
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Using the scan tool, check the intake air temperature:
If the specified value is not obtained:
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End diagnosis and switch the ignition off.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ General Diagnosis ] See: Testing and Inspection/Initial Inspection
and Diagnostic Overview/General Diagnosis.
Start diagnosis
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Remove the rear engine cover - arrows -.
Checking voltage supply