Passat GLX V6 V6-2.8L (ATQ) (2001)
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Heated Oxygen Sensor (HO2S) -G39-, bank 1 before catalytic converter 4-pin harness connector (black) (arrow).
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Use auxiliary wires from VAG 1594 to connect multimeter with terminals 3 + 4 of appropriate 4-way connector (going to control module) to make
voltage measurement.
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Switch ignition on and measure primary voltage.
Specification: 0.40-0.50 V
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Switch ignition off.
Heated Oxygen Sensor (HO2S) 2 -G108-, bank 2 before catalytic converter 4-pin harness connector (black) (arrow).
To get at this harness connector, remove coolant container attachment screws and tilt coolant container to the side. The coolant hoses can remain
