A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
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 scan tool.
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Start the engine and let it run at idle.
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Select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
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Select "Test-ID 02: Oxygen sensor monitoring behind catalytic converter".
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Select following Test-IDs.
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Check the specified values at idle.
If the specified values are obtained:
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End diagnosis and switch ignition off.
If the specified values are not obtained:
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Remove the right vehicle floor cover - arrows -.
Checking primary voltage
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Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector - arrow -.