TT Quattro Coupe V6-3.2L (CBRA) (2008)
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) terminals 3 to 4 for an open circuit.
Specified value: 2.5 to 10.0 ohms (at approx. 20° C)
If the specification was not obtained:
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Replace the 2- Heated Oxygen Sensor (HO2S) (G39) or the 1 Heated Oxygen Sensor (HO2S) 2 (G108).
If the specification was obtained:
Checking voltage supply
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) electrical harness connector terminal 4 to ground (GND) for voltage.