Preconditions for the test:
Engine idling.
No faults stored.
All electrical loads switched off.
Gear selector set to ”P/N”.
Note:
For diagnosis of the secondary air system, cylinder bank 1.
Procedure:
Choose the function: Secondary air system, cylinder bank 1.
The diagnostic status field will change from ”Test off” to ”Test on”.
Let the engine idle until the tank ventilation system changes from ”Test on” to ”Syst OK!”. / Syst not OK!”.