Passat L4-1.8L Turbo (AWM) (2004)
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Check oxygen sensor heater for continuity at connector to Heated Oxygen Sensor (HO2S) terminals 1 + 2.
Specified value: 2.5 to 10 ohms (at room temperature)
Vehicles with engine code ATW
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Disconnect 4-pin harness connector (black) to Heated Oxygen Sensor (HO2S) -G39- (-1-).
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Check oxygen sensor heater for continuity at connector to Heated Oxygen Sensor (HO2S) terminals 1 + 2.
Specified value: 2.5 to 10 ohms (at room temperature)
Vehicles with engine code AUG, AWM