Preconditions for the test:
Engine idling.
No faults stored.
Engine temperature above 85 °C.
All electrical loads switched off.
Gear selector set to P/N.
Note:
To check the tank venting system.
Procedure:
Choose the function: Tank ventilation system.
The diagnostic status changes from ”Test off” to ”Test on”.
Let the engine idle until the diagnostic status changes from ”Test on” to ”TVV OK / TVV not OK”.