Test condition:
Engine idling.
No faults stored.
Engine temperature above 80°C.
Intake 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: Catalysator efficiency.
Depress brake pedal.
The engine speed will raise and the status field will change from "Test off" to "Test on".
The temperature of the catalytic converter must be above 400 °C.
Maintain the engine speed until the diagnostic status field changes from "Test on" to "Cat B1 OK / Cat B1 not OK".
If the specifications are not attained, interrogate fault memory.
Exit function.