Jetta SportWagen L5-2.5L (CBUA) (2009)
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Select "Monitor-ID $01: Oxygen sensor monitoring before catalytic converter".
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Select "Test-ID $83: Dynamic test".
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Check the specified values at idle.
If specified values are obtained:
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End diagnosis and switch the ignition off.
If the specified values are not obtained:
Checking primary voltage
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Disconnect the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector - 1 -.
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Using a multimeter, connect the negative lead to engine ground. Check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector
terminals 1,2,5, and 6 for voltage.
Specified value: 2.40 V - 2.99 V
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Switch the ignition off.