New Beetle L5-2.5L (BPS) (2006)
Intake Air Temperature Sensor: Testing and Inspection
Diagnostic Procedures
Intake Air Temperature Sensor, Checking
‹› The Mass Air Flow sensor and the Intake Air Temperature sensor are combined as a unit.
‹› Use only gold-plated terminals when servicing terminals in the electrical harness connector of the MAF / IAT sensor (G70 / G42).
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Start diagnosis
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Connect the scan tool.
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Engine must be at Room Temperature.
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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 was obtained:
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Fault is intermittent. Check for proper connection, damaged wiring or loose terminals.
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Switch the ignition OFF.
If the specified value was Not obtained:
Checking internal resistance
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Disconnect the MAF / IAT sensor (G70 / G42) electrical harness connector.
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Using a multimeter, check the MAF / IAT sensor ( G70 / G42) terminals 1 to 2 for resistance.
Use the chart below for the specified values:
Specified values: