Preconditions for the test:
Engine idling.
No faults stored.
Engine temperature above 80 °C.
Induction air temperature below 60 °C.
All electrical loads switched off.
Automatic gearbox set to ”P/N”.
Note:
To check the tank venting system.
See readiness test
Perform a test of the tank ventilation system:
Choose the tank venting function.
The tank ventilation system changes from ”Test off” to ”Test on”.
Let the engine idle until the tank ventilation system changes to ”TVV OK / TVV nOK”.