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Passat Sedan V6-3.6L (BLV) (2008)

Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > HO2S Front Oxygen Sensor Bank 1 Sensor 1, Checking > Page 2773

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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.

Start diagnosis

Checking internal resistance

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Disconnect the HO2S Oxygen Sensor Bank 2 Sensor 2 (G131) electrical harness connector - 3 -.

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Using a multimeter, check the Oxygen Sensor Heater Bank 2 Sensor 2 (Z30) terminals 1 to 2 for resistance.

Specified value: 1.0 to 20.0 ohms (at approx. 20° C)

If the specification was not obtained:

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Replace the faulty HO2S Oxygen Sensor Bank 2 Sensor 2 (G131). Refer to the Repair Information.

If the specification was obtained:

Checking voltage supply

Start the engine.

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Using a multimeter, check the Oxygen Sensor Heater Bank 2 Sensor 2 (Z30)electrical harness connector terminal 1 to ground for voltage.

Specified value: 10.10 to 11.70 V

Switch the ignition off.

Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > HO2S Front Oxygen Sensor Bank 1 Sensor 1, Checking > Page 2773

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