volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Oxygen Sensor Heater Before Catalytic Converter, Checking|Page 2395 > < Oxygen Sensor Heater Before Catalytic Converter, Checking|Page 2393
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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 were obtained:

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Switch ignition off. Fault is not active at this time. Check for poor connections, loose terminals and harness check.

If the specified values were Not obtained:

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Remove the right vehicle floor cover - arrows -. 

Checking primary voltage

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Disconnect the brown Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector -  arrow -.

Oxygen Sensor Heater Before Catalytic Converter, Checking|Page 2395 > < Oxygen Sensor Heater Before Catalytic Converter, Checking|Page 2393