volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 6379 > < Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 6377
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Function test

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Perform the function test in Diagnostic Mode 06 --> [ Diagnostic Mode 06 - Read Test Results for Specific Diagnostic Functions ] See: Testing
and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions. 

If the specified values are not obtained:

Start diagnosis

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Remove the right vehicle floor cover - arrows -. 

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Disconnect the Oxygen Sensor (O2S) (middle of Three Way Catalytic Converter (TWC) Heater (G465) electrical harness connector - 1 -.

Checking primary voltage

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Switch the ignition on.

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Using a multimeter, check the Oxygen Sensor (O2S) (middle of Three Way Catalytic Converter (TWC) Heater (G465) electrical harness
connector terminals 3 to 4 for voltage. 

Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 6379 > < Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 6377