R8 Quattro Coupe V10-5.2L (BUJ) (2010)
Specified value: 0.400 to 0.500 Volts
-
Switch the ignition off.
If the specified value was not obtained:
-
Replace Heated Oxygen Sensor (HO2S) (G39). Refer to appropriate repair information.
If the specified value was obtained:
Checking wiring
If the manufacturers test box is being used, perform the following step.
-
Install the test box. Refer to appropriate repair information.
If the manufacturers test box is not being used, perform the following step.
-
Remove the Motronic Engine Control Module (ECM) (J623). Refer to appropriate repair information.
-
Using a Multimeter, check the Heated Oxygen Sensor (HO2S) (G39) electrical harness connector terminals to the Motronic Engine Control
Module (ECM) (J623) electrical harness connector T94 terminals for an open circuit.