R8 Quattro Coupe V10-5.2L (BUJ) (2010)
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Specified value: 2.5 to 10.0 ohms (at approx. 20° C)
If the specification was not obtained:
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Replace Heated Oxygen Sensor (HO2S) (G39). Refer to appropriate repair information.
If the specification was obtained:
Checking voltage supply
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.
Switch the ignition off.
If the specification was not obtained:
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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Check the wiring from the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminal 4 to the Motronic Engine Control Module
(ECM) Power Supply Relay (J271) socket 2/30 for a short circuit to each other, Ground (GND), or an open circuit.
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If necessary, repair the faulty wiring connection.
