A4 Cabriolet L4-2.0L Turbo (BWT) (2007)
electrical harness connector terminals 1 to 2 for resistance.
Specified resistance: 1.0 to 20.0 ohms (at approx. 20° C)
If the specified value is not obtained:
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Replace Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) ( G130). Refer to Fuel Injection and Ignition Repair Information.
If the specified value is obtained:
Checking voltage supply
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Crank the engine (engine may run).
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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 Ground (GND) for voltage.
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Switch the ignition off.
Specified value: Battery voltage.
If the specification was not obtained:
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Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) ( G130) electrical harness connector terminal 1 to the Motronic