Touareg 2 V6-3.6L (BHK) (2008)
Test requirements
‹› The Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) fuses OK.
‹› Oxygen Sensor (O2S) 2 (behind Three Way Catalytic Converter (TWC)) Heater (Z30) OK. Refer to --> [ Oxygen Sensor O2S 2 behind Three
Way Catalytic Converter TWC Heater,
Checking ] See: Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Oxygen Sensor O2S 2 behind Three
Way Catalytic Converter TWC Heater, Checking.
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, selector lever in position " P" or "N".
‹› A/C switched off.
‹› Ground (GND) connections between engine/transmission/chassis OK.
‹› Exhaust system between catalytic converter and cylinder head properly sealed.
‹› Coolant Temperature at least 80° C.
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.
Function test
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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 01: Oxygen sensor monitoring before catalytic converter".
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Select "Test-ID 131: Dynamic test".
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Check the specified values at idle.