Tiguan 4Motion (5N1) L4-2.0L Turbo (CCTA) (2009)
If the specified values were Not obtained:
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Replace the Ambient Air Temperature Sensor (G17 ).
If the specified values are obtained, continue the test according to the following table:
Checking wiring
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Turn the ignition switch ON.
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Connect a multimeter to terminals 1 and 2 of the Ambient Air Temperature Sensor (G17) electrical harness connector.
Specified value: near 5.02 V
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Turn the ignition switch OFF.
If the specified value was Not obtained:
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Remove the Instrument Cluster.
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Disconnect the Instrument Cluster harness.
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Using a multimeter, check the Ambient Air Temperature Sensor (G17) electrical harness connector to the Instrument Cluster electrical harness
connector for an open circuit or a short, refer to the chart below.
Specified value: 1.5 ohms max.
If the specified value was Not obtained:
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Check the wiring for an open, high resistance or short circuit to Battery (+) or ground.
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
Replace the Instrument Cluster.