Jetta Sedan L5-2.5L (CBTA) (2009)
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Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector terminals
1 to 2 for resistance.
Specified value: 2.5 to 14.0 ohms (at approx. 20 °C)
If the specification was not obtained:
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Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
If the specification was obtained:
Checking voltage supply
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Turn the ignition switch ON
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Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector terminal
1 to engine ground.
Specified value: Battery voltage.
If the specification was not obtained:
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Check the wiring for an open, high resistance, short circuit to each other, or Ground (GND).
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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 specification was obtained: