Test condition:
Engine running.
No faults stored.
Engine temperature above 80 °C.
No leaks in the exhaust system.
All electrical loads switched off.
Note:
Used to test the lambda probe after the catalytic converter.
Procedure:
Choose the function: Lambda probe after catalytic converter.
Engine idling. Press and hold down the brake pedal.
The diagnostic status field will change from ”Test off” to ”Test on”.
Required values at test: Lambda probe after catalytic converter 0.000-1.000 V (must vary by at least 2 %). Diagnostic status must change from ”Test on” to ”B1-S2 OK/ B1-S2 not OK”.