New Beetle L5-2.5L (BPS) (2006)
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Using a multimeter, connect the negative lead to engine ground. Start the engine, and check the Heated Oxygen Sensor (HO2S) (G39) electrical
harness connector terminals 2, 3, 4 and 6 for voltage.
Specified value: 2.40 V - 4.99 V
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Switch the ignition OFF.
If the specified value was obtained:
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Replace the Heated Oxygen Sensor (HO2S) (G39).
If the specified value was Not obtained:
Checking wiring
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 terminals to the Motronic Engine Control
Module (ECM) (J220) electrical harness connector T121 terminals for an open circuit.