New Beetle Convertible L5-2.5L (BPS) (2006)
Specified value: 2.5 to 19.0 ohms (at approx. 20° C)
If the specified value was Not obtained:
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Replace the Heated Oxygen Sensor (HO2S) (G39).
If the specified value was obtained:
Checking voltage supply
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Start the engine.
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminal 4 to engine ground for voltage.
Turn the ignition switch OFF.
Specified value: Battery voltage.
If the specified value was Not obtained:
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Check the wiring for an open, high resistance or short to Ground and replace any open fuse.
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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.
If the specified value was obtained:
Checking Ground activation
If the manufacturers test box is being used, perform the following step.
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Install the test box.
If the manufacturers test box is not being used, perform the following step.
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Remove the Motronic Engine Control Module (ECM) ( J220). Refer to the Repair Information.
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminal 3 to the Motronic Engine Control
Module (ECM) (J220) electrical harness connector T121 terminal 5 for an open circuit.
Specified value: 1.5 ohms max.