Test condition:
Engine running.
No faults stored.
No leaks in the exhaust system.
All electrical loads switched off.
Coolant temperature at least 80 °C.
The temperature of the catalytic converter at least 350 °C.
Note:
Used to test the lambda probe after the catalytic converter.
Procedure:
Choose the function: Lambda probe after catalysator, age check.
For vehicles to 04.01:
Raise idling speed to 1800-2200 rpm.
The status field will change from "Test off" to "Test on".
Test may take several minutes.
Maintain the engine speed until the status field changes from "Test on" to "B1-S2 OK/B1-S2 not OK".
For vehicles from 05.01:
Depress brake- and throttle pedal.
The engine speed will raise by the engine control module to 1800-2200 rpm.
The status field will change from "Test off" to "Test on".
Test may take several minutes.
Maintain the engine speed until the status field changes from "Test on" to "B1-S2 OK/B1-S2 not OK".
If the specifications are not attained, interrogate fault memory.
Exit function.