volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor Heater Circuit, Checking|Page 2684 > < Heated Oxygen Sensor Heater Circuit, Checking|Page 2682
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‹› Ground (GND) connections between engine/transmission/chassis OK.

‹› Ignition switched off.

Test procedure

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Perform a preliminary check to verify the customers complaint. Refer  to --> [ Preliminary Check ] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Preliminary Check.

Start diagnosis

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Remove the right vehicle floor cover - arrows -. 

Checking internal resistance

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Disconnect the Oxygen Sensor (O2S) Behind Three Way Catalytic  Converter (TWC) (G130) electrical harness connector -  1 -.

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Using a multimeter, check the Oxygen  Sensor (O2S) Behind Three Way Catalytic Converter (TWC) terminals  1 to 2 for resistance.

Heated Oxygen Sensor Heater Circuit, Checking|Page 2684 > < Heated Oxygen Sensor Heater Circuit, Checking|Page 2682