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.
The diagnosis takes about 100 seconds. If no result is obtained after 150 seconds, change the engine speed.
Procedure:
Choose the function: Catalytic converter diagnosis.
Depress brake- and throttle 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 352 °C.
Read the catalysator efficiency. Prescribed value at least 1,00.
Maintain the engine speed until the diagnostic status field changes from "Test on" to "Cat B1 OK".
If the specifications are not attained, interrogate fault memory.
Exit function.