R8 Quattro Coupe V10-5.2L (BUJ) (2010)
Specified value: 1.0 to 20.0 ohms (at approx. 20° C)
If the specification was not obtained:
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Replace the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131). Refer to appropriate service information.
If the specification was obtained:
Checking voltage supply
Crank the engine.
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Using a multimeter, check the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) electrical harness connector
terminal 3 to 4 for voltage.
Specified value: 0.400 to 0.500 Volts
Switch the ignition off.
If the specification was not obtained:
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Check the wiring from the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) electrical harness connector terminal 1
to the Motronic Engine Control Module (ECM) Power Supply Relay (J271) socket 2/30 for an open circuit, a short circuit to Battery (+), or
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.