Test condition:
Engine idling.
No faults stored.
Engine temperature above 85 °C.
No leaks in the exhaust system.
All electrical loads switched off.
Note:
Used to see the lambda regulation value for the sond before the catalytic converter.
During basic setting, the AC compressor is switched off and the carbon canister valve is closed.
Procedure:
Choose the lambda regulation function.
Read off the value columns. Required result: lambda regulation (bank 1, sond 1) –10 % to 10 % (must vary by at least 2%); lambda sond (bank 1, sond 1) 0.13-3.6 V.