Jetta L4-2.0L (BEV) (2004)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Heater For Oxygen Sensor Behind Three Way Catalytic Converter (TWC), Checking
Oxygen Sensor Heater For Oxygen Sensor Behind Three Way Catalytic Converter (TWC), Checking
NOTE:
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Vehicle must be raised before connector for oxygen sensor is accessible.
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When servicing terminals 3 and 4 in harness connector of Heated Oxygen Sensor (HO2S), use only gold-plated terminals.
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 connector test kit
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V.A.G 1594 connector test kit
Requirements
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The respective fuses of Heated Oxygen Sensor (HO2S) -G130- must be OK.
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Ignition switched off.
Work sequence (Vehicles with engine code AEG, AVH, AZG, BEV)
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Remove protective cover (arrows) and disconnect 4-pin harness connector (brown) -1- to Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130-.
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Check resistance for sensor heater at connector to oxygen sensor terminal 1 + 2.