volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Oxygen Sensor Heater Z19 For Heated Oxygen Sensor G39 In front of Catalytic Converter, Checking|Page 5767 > < Oxygen Sensor Heater Z19 For Heated Oxygen Sensor G39 In front of Catalytic Converter, Checking|Page 5765
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Disconnect the brown Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector -  arrow -.

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Switch the ignition on.

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Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector terminals
3 to 4 for voltage.

Specified value: 0.400 to 0.500 Volts

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Switch the ignition off.

If the specified value was obtained:

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Replace the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) ( G130).

If the specified value was not obtained:

Checking wiring

If the manufacturers test box is being used. Perform the following step.

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Install the Test Box 105 Pin (VAG1598/42).

If the manufacturers test box is not being used. Perform the following step.

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Remove the Motronic Engine Control Module (ECM) ( J623). Refer to => [ Engine Control Module J623, Removing and Installing ] See:
Computers and Control Systems/Engine Control Module/Service and Repair/Engine Control Module J623, Removing and Installing.

Oxygen Sensor Heater Z19 For Heated Oxygen Sensor G39 In front of Catalytic Converter, Checking|Page 5767 > < Oxygen Sensor Heater Z19 For Heated Oxygen Sensor G39 In front of Catalytic Converter, Checking|Page 5765