Passat Sedan L4-2.0L Turbo (BPY) (2007)
Specified value: 0 to 20.0 ohms max. (at approx. 20° C)
If the specification was not obtained:
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Replace the Heated Oxygen Sensor (HO2S) (G39).
If the specification was obtained:
Checking voltage supply
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Crank the engine
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminal 4 to Ground (GND) for voltage.
Specified value: Battery voltage.
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Switch the ignition off.
If the specification was not obtained:
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Check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminal 4 to the Motronic Engine Control Module (ECM) Power
Supply Relay 2 (J670) socket 2/87 for an open circuit or a short to Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.