S6 Quattro Sedan V10-5.2L (BXA) (2007)
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test requirements
‹› The Engine Control Module (ECM) 2 (J624) fuses OK.
‹› Oxygen Sensor 02S) 3 (behind Three Way Catalytic Converter (TWC)) Heater (Z64) OK.
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, selector lever in position " P" or "N".
‹› A/C switched off.
‹› Ground (GND) connections between engine/transmission/chassis OK.
‹› Exhaust system between catalytic converter and cylinder head properly sealed.
‹› Coolant Temperature at least 80° C.
Function test
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Perform the function test located in diagnostic mode 06. Refer to => [ OBDMID 10 ($0A): Oxygen Sensor
Monitor Bank 3 - Sensor 2 ] See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions.
If specified values are obtained:
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End diagnosis and switch the ignition off.
If the specified values are not obtained:
Procedure
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Raise the vehicle.
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Loosen the quick release fasteners - 1 - and - 2 - and remove the noise insulation panel.