Passat V6-2.8L (ATQ) (2004)
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Check oxygen sensor heater on connector to Heated Oxygen Sensor (HO2S) terminals 1 + 2 for continuity
Specification: max. 200 Ohms
If specified value is not obtained:
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Replace appropriate Heated Oxygen Sensor (HO2S).
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Cylinder bank 1 (G39) item 27
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Cylinder bank 2 (G108) item 18
If expected value is not obtained:
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Check Ground (GND) connection of the appropriate oxygen sensor heater.
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Switch ignition off.
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Connect VAG1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
