Test condition:
Engine running
No faults stored
No leaks in the exhaust system
All electrical loads switched off
Coolant temperature at least 80 °C
Note:
Used to test the lambda probe after the catalytic converter.
The basic setting procedure may take a few minutes.
Procedure:
Choose the function: Lambda probe after catalytic converter, readiness test.
Depress brake- and throttle pedal
The engine control unit now increases the engine speed.
The diagnostic status field will change from "Test OFF" to "Test ON".
Read off the lambda probe after the catalytic converter. Prescribed value 0.00-1.00 V.
The diagnostic status field must change from "Test ON" to "B1-S2 OK" / "B1-S2 not OK".