volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor G39, Checking|Page 778 > < Heated Oxygen Sensor G39, Checking|Page 776
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Oxygen Sensor: Testing and Inspection
Oxygen Sensor After Three Way Catalytic Converter G130, Checking

Oxygen Sensor After Three Way Catalytic Converter G130, Checking

NOTE:

-

Vehicle must be raised before electrical harness connector for the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 is
accessible.

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When servicing terminals in harness connector of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130, use only
gold-plated terminals.

Special tools, testers and auxiliary items required

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Multimeter.

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Wiring diagram.

Test requirements

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FuseSB12OK.

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Battery voltage at least 12.5 volts.

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All electrical consumers such as, lights and rear window defroster, switched off.

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Vehicles with automatic transmission, shift selector lever into position "P" or "N".

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A/C switched off.

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Ground (GND) connections between engine/transmission/chassis OK.

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Ignition switched off.

Test procedure

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

Start diagnosis

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Perform the function test in Diagnostic Mode 06.  See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan
Tool Testing and Procedures/Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions

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End diagnosis and switch ignition off.

If the specified values are not obtained:

Checking primary voltage

-

Remove the right vehicle floor cover - arrows -.

Heated Oxygen Sensor G39, Checking|Page 778 > < Heated Oxygen Sensor G39, Checking|Page 776