Preconditions for the test:
Engine idling.
No faults stored.
Battery voltage above 11.5 V.
Engine temperature above 80 °C.
Induction air temperature below 60 °C.
All electrical loads switched off.
Gear selector set to ”P/N”.
Note:
For diagnosis of the catalytic converter.
Procedure:
Choose the function: Catalytic converter diagnosis.
Increase the engine speed to 2500-4500 rpm.
The temperature of the catalytic converter must be above 400 °C.
The diagnostic status field changes from ”Test off” to ”Test on”.
Maintain the engine speed until the diagnostic status field changes from ”Test on” to ”Cat B1 OK! / Cat B1 not OK!”.