New Beetle L4-1.8L Turbo (AWV) (2005)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Heater For Oxygen Sensor Before Three Way Catalytic Converter (TWC), Checking
Oxygen Sensor Heater For Oxygen Sensor Before Three Way Catalytic Converter (TWC), Checking
NOTE:
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Vehicle must be raised before oxygen sensor connector is accessible.
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When servicing terminals in harness connector of oxygen sensor, 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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Wiring diagram
Test requirements
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The respective fuses of Heated Oxygen Sensor (HO2S) -G39- must be OK.
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Fuel Pump (FP) Relay -J17- must be OK, check.
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Ground (GND) connections between engine and chassis must be OK.
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Ignition switched off.
Test sequence
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Remove protective cover (arrows) and disconnect 6-pin harness connector to Heated Oxygen Sensor (HO2S) -G39- before catalytic converter.
Checking resistance